Convert CONFIG_CMD_ENV_FLAGS to Kconfig

This converts the following to Kconfig:
   CONFIG_CMD_ENV_FLAGS

Signed-off-by: Simon Glass <sjg@chromium.org>

README

@@ -833,7 +833,6 @@ The following options need to be configured:
 		CONFIG_CMD_ECHO		  echo arguments
 		CONFIG_CMD_EDITENV	  edit env variable
 		CONFIG_CMD_ELF		* bootelf, bootvx
-		CONFIG_CMD_ENV_FLAGS	* display details about env flags
 		CONFIG_CMD_ENV_EXISTS	* check existence of env variable
 		CONFIG_CMD_EXPORTENV	* export the environment
 		CONFIG_CMD_EXT2		* ext2 command support

cmd/Kconfig

@@ -322,6 +322,14 @@ config CMD_ENV_CALLBACK
 	  For example changing "baudrate" adjust the serial baud rate. This
 	  command lists the currently defined callbacks.
 
+config CMD_ENV_FLAGS
+	bool "env flags -print variables that have non-default flags"
+	help
+	  Some environment variables have special flags that control their
+	  behaviour. For example, serial# can only be written once and cannot
+	  be deleted. This command shows the variables that have special
+	  flags.
+
 endmenu
 
 menu "Memory commands"

configs/ids8313_defconfig

@@ -13,6 +13,7 @@ CONFIG_HUSH_PARSER=y
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Enter password - autoboot in %d seconds...\n"
 CONFIG_AUTOBOOT_DELAY_STR="ids"
+CONFIG_CMD_ENV_FLAGS=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_I2C=y
 # CONFIG_CMD_SETEXPR is not set

configs/sandbox_defconfig

@@ -23,6 +23,7 @@ CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_GREPENV=y
 CONFIG_CMD_ENV_CALLBACK=y
+CONFIG_CMD_ENV_FLAGS=y
 CONFIG_CMD_MD5SUM=y
 CONFIG_LOOPW=y
 CONFIG_CMD_MEMTEST=y

configs/sandbox_noblk_defconfig

@@ -23,6 +23,7 @@ CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_GREPENV=y
 CONFIG_CMD_ENV_CALLBACK=y
+CONFIG_CMD_ENV_FLAGS=y
 CONFIG_CMD_MD5SUM=y
 CONFIG_LOOPW=y
 CONFIG_CMD_MEMTEST=y

configs/sandbox_spl_defconfig

@@ -31,6 +31,7 @@ CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_GREPENV=y
 CONFIG_CMD_ENV_CALLBACK=y
+CONFIG_CMD_ENV_FLAGS=y
 CONFIG_CMD_MD5SUM=y
 CONFIG_LOOPW=y
 CONFIG_CMD_MEMTEST=y

include/configs/ids8313.h

@@ -444,7 +444,6 @@
 #define CONFIG_UBOOTPATH		"ids8313/u-boot.bin"
 #define CONFIG_FDTFILE			"ids8313/ids8313.dtb"
 #define CONFIG_LOADADDR		0x400000
-#define CONFIG_CMD_ENV_FLAGS
 #define CONFIG_ENV_FLAGS_LIST_STATIC "ethaddr:mo,eth1addr:mo"
 
 /* Initial Memory map for Linux*/

include/configs/sandbox.h

@@ -107,8 +107,6 @@
 
 #define CONFIG_CMD_SANDBOX
 
-#define CONFIG_CMD_ENV_FLAGS
-
 #define CONFIG_BOOTARGS ""
 
 #ifndef SANDBOX_NO_SDL

scripts/config_whitelist.txt

@@ -383,7 +383,6 @@ CONFIG_CM922T_XA10
 CONFIG_CMDLINE_EDITING
 CONFIG_CMDLINE_PS_SUPPORT
 CONFIG_CMDLINE_TAG
-CONFIG_CMD_ENV_FLAGS
 CONFIG_CMD_ERRATA
 CONFIG_CMD_ESBC_VALIDATE
 CONFIG_CMD_ETHSW