bootstd: Rename distro and syslinux to extlinux

We use the terms 'distro' to mean extlinux but they are not really the
same. 'Distro' could refer to any method of booting a distribution,
whereas extlinux is a particular method.

Also we sometimes use syslinux, but it is better to use the same term in
all cases.

Rename distro to syslinux and also update bootstd uses of syslinux to use
extlinux instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/boot/bootmeth.c b/test/boot/bootmeth.c
index 0098ef3..e498eee 100644
--- a/test/boot/bootmeth.c
+++ b/test/boot/bootmeth.c
@@ -21,7 +21,7 @@
 	ut_assertok(run_command("bootmeth list", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    0    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    0    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextline("    1    1  efi                 EFI boot from an .efi file");
 	if (IS_ENABLED(CONFIG_BOOTMETH_GLOBAL))
 		ut_assert_nextline(" glob    2  firmware0           VBE simple");
@@ -39,16 +39,16 @@
 {
 	/* Select just one bootmethod */
 	console_record_reset_enable();
-	ut_assertok(run_command("bootmeth order syslinux", 0));
+	ut_assertok(run_command("bootmeth order extlinux", 0));
 	ut_assert_console_end();
 	ut_assertnonnull(env_get("bootmeths"));
-	ut_asserteq_str("syslinux", env_get("bootmeths"));
+	ut_asserteq_str("extlinux", env_get("bootmeths"));
 
 	/* Only that one should be listed */
 	ut_assertok(run_command("bootmeth list", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    0    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    0    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(1 bootmeth)");
 	ut_assert_console_end();
@@ -57,7 +57,7 @@
 	ut_assertok(run_command("bootmeth list -a", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    0    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    0    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextline("    -    1  efi                 EFI boot from an .efi file");
 	if (IS_ENABLED(CONFIG_BOOTMETH_GLOBAL))
 		ut_assert_nextline(" glob    2  firmware0           VBE simple");
@@ -67,12 +67,12 @@
 	ut_assert_console_end();
 
 	/* Check the -a flag with the reverse order */
-	ut_assertok(run_command("bootmeth order \"efi syslinux\"", 0));
+	ut_assertok(run_command("bootmeth order \"efi extlinux\"", 0));
 	ut_assert_console_end();
 	ut_assertok(run_command("bootmeth list -a", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    1    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    1    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextline("    0    1  efi                 EFI boot from an .efi file");
 	if (IS_ENABLED(CONFIG_BOOTMETH_GLOBAL))
 		ut_assert_nextline(" glob    2  firmware0           VBE simple");
@@ -90,17 +90,17 @@
 		 "(3 bootmeths)" : "(2 bootmeths)");
 
 	/* Try reverse order */
-	ut_assertok(run_command("bootmeth order \"efi syslinux\"", 0));
+	ut_assertok(run_command("bootmeth order \"efi extlinux\"", 0));
 	ut_assert_console_end();
 	ut_assertok(run_command("bootmeth list", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("    0    1  efi                 EFI boot from an .efi file");
-	ut_assert_nextline("    1    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    1    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(2 bootmeths)");
 	ut_assertnonnull(env_get("bootmeths"));
-	ut_asserteq_str("efi syslinux", env_get("bootmeths"));
+	ut_asserteq_str("efi extlinux", env_get("bootmeths"));
 	ut_assert_console_end();
 
 	return 0;
@@ -140,7 +140,7 @@
 
 	/* Select just one bootmethod */
 	console_record_reset_enable();
-	ut_assertok(env_set("bootmeths", "syslinux"));
+	ut_assertok(env_set("bootmeths", "extlinux"));
 	ut_asserteq(1, std->bootmeth_count);
 
 	/* Select an invalid bootmethod */
@@ -149,7 +149,7 @@
 	ut_assert_nextlinen("## Error inserting");
 	ut_assert_console_end();
 
-	ut_assertok(env_set("bootmeths", "efi syslinux"));
+	ut_assertok(env_set("bootmeths", "efi extlinux"));
 	ut_asserteq(2, std->bootmeth_count);
 	ut_assert_console_end();