video: mxsfb: move mxsfb.h into include/linux

Move mxsfb.h into include/linux, so that mxsfb driver does not have to
include <mach/*> header.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index abbe691..08dad8d 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -46,7 +46,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
 #include <linux/pinctrl/consumer.h>
-#include <mach/mxsfb.h>
+#include <linux/mxsfb.h>
 
 #define REG_SET	4
 #define REG_CLR	8