bootstd: Add a bootdev command

Add a 'bootdev' command to handle listing and selection of bootdevs.

Disable standard boot for a few boards which otherwise run out of space.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/tbs2910_defconfig b/configs/tbs2910_defconfig
index 60a8160..9f7642f 100644
--- a/configs/tbs2910_defconfig
+++ b/configs/tbs2910_defconfig
@@ -17,6 +17,7 @@
 CONFIG_LTO=y
 CONFIG_HAS_BOARD_SIZE_LIMIT=y
 CONFIG_BOARD_SIZE_LIMIT=392192
+# CONFIG_BOOTSTD is not set
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTCOMMAND=y