bootmenu: U-Boot console is enabled as default

The commit 2158b0da ("bootmenu: add Kconfig option
not to enter U-Boot console") disables to enter U-Boot
console from bootmenu as default, this change affects the
existing bootmenu users.

This commit reverts the default behavior, the bootmenu can
enter U-Boot console same as before.
CMD_BOOTMENU_ENTER_UBOOT_CONSOLE is renamed
BOOTMENU_DISABLE_UBOOT_CONSOLE and depends on
AUTOBOOT_MENU_SHOW.

Fixes: 2158b0da ("bootmenu: add Kconfig option not to enter U-Boot console")
Signed-off-by: NMasahisa Kojima <masahisa.kojima@linaro.org>
Tested-by: NPali Rohar <pali@kernel.org>
Reviewed-by: NIlias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: NHeinrich Schuchardt <heinrich.schuchardt@canonical.com>

boot/Kconfig

@@ -1143,6 +1143,13 @@ config AUTOBOOT_MENU_SHOW
 	  environmnent variable (if enabled) and before handling the boot delay.
 	  See README.bootmenu for more details.
 
+config BOOTMENU_DISABLE_UBOOT_CONSOLE
+	bool "Disallow bootmenu to enter the U-Boot console"
+	depends on AUTOBOOT_MENU_SHOW
+	help
+	  If this option is enabled, user can not enter the U-Boot console from
+	  bootmenu. It increases the system security.
+
 config BOOT_RETRY
 	bool "Boot retry feature"
 	help

cmd/Kconfig

@@ -357,16 +357,6 @@ config CMD_BOOTMENU
 	help
 	  Add an ANSI terminal boot menu command.
 
-config CMD_BOOTMENU_ENTER_UBOOT_CONSOLE
-	bool "Allow Bootmenu to enter the U-Boot console"
-	depends on CMD_BOOTMENU
-	default n
-	help
-	  Add an entry to enter U-Boot console in bootmenu.
-	  If this option is disabled, user can not enter
-	  the U-Boot console from bootmenu. It increases
-	  the system security.
-
 config CMD_ADTIMG
 	bool "adtimg"
 	help

cmd/bootmenu.c

@@ -356,7 +356,7 @@ static struct bootmenu_data *bootmenu_create(int delay)
 			goto cleanup;
 
 		/* Add Quit entry if entering U-Boot console is disabled */
-		if (IS_ENABLED(CONFIG_CMD_BOOTMENU_ENTER_UBOOT_CONSOLE))
+		if (!IS_ENABLED(CONFIG_BOOTMENU_DISABLE_UBOOT_CONSOLE))
 			entry->title = u16_strdup(u"U-Boot console");
 		else
 			entry->title = u16_strdup(u"Quit");
@@ -589,7 +589,7 @@ int menu_show(int bootdelay)
 		if (ret == BOOTMENU_RET_UPDATED)
 			continue;
 
-		if (!IS_ENABLED(CONFIG_CMD_BOOTMENU_ENTER_UBOOT_CONSOLE)) {
+		if (IS_ENABLED(CONFIG_BOOTMENU_DISABLE_UBOOT_CONSOLE)) {
 			if (ret == BOOTMENU_RET_QUIT) {
 				/* default boot process */
 				if (IS_ENABLED(CONFIG_CMD_BOOTEFI_BOOTMGR))