wandboard: Use 32bit color depth for Fusion LCD

The Fusion LCD needs the 32bit color depth to properly work; the
default is different on the 3.10.17 kernels and it is better to ensure
it work out of box using proper default color setting.
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>

include/configs/wandboard.h

@@ -175,7 +175,7 @@
 		"if i2c probe 0x10; then " \
 			"setenv bootargs ${bootargs} " \
 				"video=mxcfb${nextcon}:dev=lcd,800x480@60," \
-					"if=RGB666; " \
+					"if=RGB666,bpp=32; " \
 			"if test 0 -eq ${nextcon}; then " \
 				"setenv fbmem fbmem=10M; " \
 			"else " \