efi_loader: rename Unicode collation protocol 2 variables

Rename variables to make it clear they refer to the Unicode collation
protocol identified by the EFI_UNICODE_PROTOCOL2_GUID.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index 6501ee5..7e13ee5 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -36,14 +36,14 @@
 	  U-Boot implements enough of its features to be able to run the UEFI
 	  Shell, but not more than that.
 
-config EFI_UNICODE_COLLATION_PROTOCOL
+config EFI_UNICODE_COLLATION_PROTOCOL2
 	bool "Unicode collation protocol"
 	default y
 	help
 	  The Unicode collation protocol is used for lexical comparisons. It is
 	  required to run the UEFI shell.
 
-if EFI_UNICODE_COLLATION_PROTOCOL
+if EFI_UNICODE_COLLATION_PROTOCOL2
 
 config EFI_UNICODE_CAPITALIZATION
 	bool "Support Unicode capitalization"
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index f3d6773..01769ea 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -30,7 +30,7 @@
 obj-y += efi_root_node.o
 obj-y += efi_runtime.o
 obj-y += efi_setup.o
-obj-$(CONFIG_EFI_UNICODE_COLLATION_PROTOCOL) += efi_unicode_collation.o
+obj-$(CONFIG_EFI_UNICODE_COLLATION_PROTOCOL2) += efi_unicode_collation.o
 obj-y += efi_variable.o
 obj-y += efi_watchdog.o
 obj-$(CONFIG_LCD) += efi_gop.o
diff --git a/lib/efi_loader/efi_root_node.c b/lib/efi_loader/efi_root_node.c
index d8496cc..2b7277d 100644
--- a/lib/efi_loader/efi_root_node.c
+++ b/lib/efi_loader/efi_root_node.c
@@ -60,10 +60,10 @@
 			 /* Device path utilities protocol */
 			 &efi_guid_device_path_utilities_protocol,
 			 (void *)&efi_device_path_utilities,
-#if CONFIG_IS_ENABLED(EFI_UNICODE_COLLATION_PROTOCOL)
+#if CONFIG_IS_ENABLED(EFI_UNICODE_COLLATION_PROTOCOL2)
 			 /* Unicode collation protocol */
-			 &efi_guid_unicode_collation_protocol,
-			 (void *)&efi_unicode_collation_protocol,
+			 &efi_guid_unicode_collation_protocol2,
+			 (void *)&efi_unicode_collation_protocol2,
 #endif
 #if CONFIG_IS_ENABLED(EFI_LOADER_HII)
 			 /* HII string protocol */
diff --git a/lib/efi_loader/efi_unicode_collation.c b/lib/efi_loader/efi_unicode_collation.c
index 7f3ea3c..e04a4de 100644
--- a/lib/efi_loader/efi_unicode_collation.c
+++ b/lib/efi_loader/efi_unicode_collation.c
@@ -26,8 +26,8 @@
 static const u16 codepage[] = CP437;
 #endif
 
-/* GUID of the EFI_UNICODE_COLLATION_PROTOCOL */
-const efi_guid_t efi_guid_unicode_collation_protocol =
+/* GUID of the EFI_UNICODE_COLLATION_PROTOCOL2 */
+const efi_guid_t efi_guid_unicode_collation_protocol2 =
 	EFI_UNICODE_COLLATION_PROTOCOL2_GUID;
 
 /**
@@ -318,7 +318,7 @@
 	return ret;
 }
 
-const struct efi_unicode_collation_protocol efi_unicode_collation_protocol = {
+const struct efi_unicode_collation_protocol efi_unicode_collation_protocol2 = {
 	.stri_coll = efi_stri_coll,
 	.metai_match = efi_metai_match,
 	.str_lwr = efi_str_lwr,