Convert CONFIG_CMD_ECCTEST to Kconfig

This converts the following to Kconfig:
   CONFIG_CMD_ECCTEST

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

arch/powerpc/cpu/ppc4xx/Kconfig

@@ -137,6 +137,12 @@ config CMD_CHIP_CONFIG
 	  and control the CPU and peripehrals clocks. The programmed
 	  configuration is then used when the board boots.
 
+config CMD_ECCTEST
+	bool "Enable the 'ecctest' command"
+	help
+	  This command tests memory ECC by single and double error bit
+	  injection.
+
 source "board/amcc/acadia/Kconfig"
 source "board/amcc/bamboo/Kconfig"
 source "board/amcc/bubinga/Kconfig"

configs/katmai_defconfig

@@ -2,6 +2,7 @@ CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_KATMAI=y
 CONFIG_CMD_CHIP_CONFIG=y
+CONFIG_CMD_ECCTEST=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_BOOTDELAY=5
 CONFIG_SYS_CONSOLE_INFO_QUIET=y

configs/t3corp_defconfig

@@ -2,6 +2,7 @@ CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_T3CORP=y
 CONFIG_CMD_CHIP_CONFIG=y
+CONFIG_CMD_ECCTEST=y
 CONFIG_FIT=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_BOOTDELAY=5

include/configs/katmai.h

@@ -145,7 +145,6 @@
 /*
  * Commands additional to the ones defined in amcc-common.h
  */
-#define CONFIG_CMD_ECCTEST
 #define CONFIG_CMD_PCI
 #define CONFIG_CMD_SDRAM
 

include/configs/t3corp.h

@@ -349,7 +349,6 @@
 /*
  * Commands additional to the ones defined in amcc-common.h
  */
-#define CONFIG_CMD_ECCTEST
 #define CONFIG_CMD_PCI
 #define CONFIG_CMD_SDRAM
 

scripts/config_whitelist.txt

@@ -383,7 +383,6 @@ CONFIG_CM922T_XA10
 CONFIG_CMDLINE_EDITING
 CONFIG_CMDLINE_PS_SUPPORT
 CONFIG_CMDLINE_TAG
-CONFIG_CMD_ECCTEST
 CONFIG_CMD_EECONFIG
 CONFIG_CMD_EEPROM
 CONFIG_CMD_EEPROM_LAYOUT