status_led: Kconfig migration

Move all of the status LED feature to drivers/led/Kconfig.
The LED status definitions were moved from the board configuration
files to the defconfig files.

TBD: Move all of the definitions in the include/status_led.h to the
relevant board's defconfig files.

Tested boards: CL-SOM-AM57x, CM-T335

Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>

scripts/config_whitelist.txt

@@ -332,7 +332,6 @@ CONFIG_BOARD_POSTCLK_INIT
 CONFIG_BOARD_RESET
 CONFIG_BOARD_REVISION_TAG
 CONFIG_BOARD_SIZE_LIMIT
-CONFIG_BOARD_SPECIFIC_LED
 CONFIG_BOARD_TAURUS
 CONFIG_BOARD_TYPES
 CONFIG_BOOGER
@@ -536,7 +535,6 @@ CONFIG_CMD_IRQ
 CONFIG_CMD_JFFS2
 CONFIG_CMD_KGDB
 CONFIG_CMD_LDRINFO
-CONFIG_CMD_LED
 CONFIG_CMD_LOADY
 CONFIG_CMD_LZMADEC
 CONFIG_CMD_MAX6957
@@ -1318,7 +1316,6 @@ CONFIG_GPCS_PHY3_ADDR
 CONFIG_GPCS_PHY_ADDR
 CONFIG_GPIO
 CONFIG_GPIO_ENABLE_SPI_FLASH
-CONFIG_GPIO_LED
 CONFIG_GPIO_LED_INVERTED_TABLE
 CONFIG_GPIO_LED_STUBS
 CONFIG_GREEN_LED
@@ -3096,7 +3093,6 @@ CONFIG_STAMP_CF
 CONFIG_STANDALONE_LOAD_ADDR
 CONFIG_STATIC_BOARD_REV
 CONFIG_STATIC_RELA
-CONFIG_STATUS_LED
 CONFIG_STD_DEVICES_SETTINGS
 CONFIG_STK52XX
 CONFIG_STK52XX_REV100