configs: Remove CONFIG_MARVELL

This option is defined by a few boards but doesn't guard any code.
Remove it from the boards and config_whitelist.txt.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>

include/configs/edminiv2.h

@@ -29,7 +29,6 @@
  * High Level Configuration Options (easy to change)
  */
 
-#define CONFIG_MARVELL		1
 #define CONFIG_FEROCEON		1	/* CPU Core subversion */
 #define CONFIG_88F5182		1	/* SOC Name */
 

include/configs/km/km_arm.h

@@ -22,7 +22,6 @@
 /*
  * High Level Configuration Options (easy to change)
  */
-#define CONFIG_MARVELL
 #define CONFIG_FEROCEON_88FR131		/* CPU Core subversion */
 #define CONFIG_KW88F6281		/* SOC Name */
 

include/configs/mv-common.h

@@ -19,7 +19,6 @@
 /*
  * High Level Configuration Options (easy to change)
  */
-#define CONFIG_MARVELL		1
 
 /*
  * Custom CONFIG_SYS_TEXT_BASE can be done in <board>.h