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>
diff --git a/include/common.h b/include/common.h
index 695478c..2af555e 100644
--- a/include/common.h
+++ b/include/common.h
@@ -911,7 +911,7 @@
 
 int	pcmcia_init (void);
 
-#ifdef CONFIG_STATUS_LED
+#ifdef CONFIG_LED_STATUS
 # include <status_led.h>
 #endif