DMA: shdma: remove private and unused defines from a global header

Macros, named like TEND or SAR lack a namespace and are too broadly named
for a global header. Besides, they aren't needed globally. Move them to
where they belong - into the driver. Some other macros aren't used at all,
remove them.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/sh/shdmac.c

@@ -37,6 +37,15 @@
 #include "../dmaengine.h"
 #include "shdma.h"
 
+/* DMA register */
+#define SAR	0x00
+#define DAR	0x04
+#define TCR	0x08
+#define CHCR	0x0C
+#define DMAOR	0x40
+
+#define TEND	0x18 /* USB-DMAC */
+
 #define SH_DMAE_DRV_NAME "sh-dma-engine"
 
 /* Default MEMCPY transfer size = 2^2 = 4 bytes */