dma: Cleanup dma-mmp_tdma.h header

Commit 293b2da1 ("ARM: pxa: move platform_data definitions")
moved the file to the current location but forgot to remove the pointer
to its previous location. Clean it up. While at it also change the header
file protection macros appropriately.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>

include/linux/platform_data/dma-mmp_tdma.h

 /*
- *  linux/arch/arm/mach-mmp/include/mach/sram.h
- *
  *  SRAM Memory Management
  *
  *  Copyright (c) 2011 Marvell Semiconductors Inc.
@@ -11,8 +9,8 @@
  *
  */
 
-#ifndef __ASM_ARCH_SRAM_H
-#define __ASM_ARCH_SRAM_H
+#ifndef __DMA_MMP_TDMA_H
+#define __DMA_MMP_TDMA_H
 
 #include <linux/genalloc.h>
 
@@ -32,4 +30,4 @@ struct sram_platdata {
 
 extern struct gen_pool *sram_get_gpool(char *pool_name);
 
-#endif /* __ASM_ARCH_SRAM_H */
+#endif /* __DMA_MMP_TDMA_H */