Convert CONFIG_AUTOBOOT_MENU_SHOW to Kconfig
This converts the following to Kconfig:
CONFIG_AUTOBOOT_MENU_SHOW
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/nokia_rx51_defconfig b/configs/nokia_rx51_defconfig
index 5cd9601..ab5bb2d 100644
--- a/configs/nokia_rx51_defconfig
+++ b/configs/nokia_rx51_defconfig
@@ -12,6 +12,7 @@
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Nokia RX-51 # "
CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_MENU_SHOW=y
CONFIG_CMD_BOOTMENU=y
# CONFIG_CMD_IMI is not set
# CONFIG_CMD_SAVEENV is not set