ARM: OMAP: DMA: Move plat/dma.h to plat-omap/dma-omap.h

Move plat/dma.h to plat-omap/dma-omap.h as part of single
zImage work

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 7bbb05d..3b1c03e 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -24,7 +24,7 @@
 #include <asm/mach/map.h>
 
 #include "common.h"
-#include <plat/dma.h>
+#include <plat-omap/dma-omap.h>
 #include <plat/gpmc.h>
 #include <plat/usb.h>