[ARM] pxa: move mach/i2c.h to plat/i2c.h

Signed-off-by: Paul Shen <paul.shen@marvell.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index c872b9f..ad5378b 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -43,7 +43,7 @@
 #include <mach/pxafb.h>
 #include <mach/ssp.h>
 #include <mach/pxa2xx_spi.h>
-#include <mach/i2c.h>
+#include <plat/i2c.h>
 #include <mach/pxa27x_keypad.h>
 #include <mach/pxa3xx_nand.h>
 #include <mach/littleton.h>