dmaengine: shdma: r8a73a4: Make dma_ts_shift[] static

dma_ts_shift[] isn't used outside this source file. All other users use
the definition from arch/arm/mach-shmobile/dma-register.h.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>

drivers/dma/sh/shdma-r8a73a4.c

@@ -11,7 +11,7 @@
 
 #include "shdma-arm.h"
 
-const unsigned int dma_ts_shift[] = SH_DMAE_TS_SHIFT;
+static const unsigned int dma_ts_shift[] = SH_DMAE_TS_SHIFT;
 
 static const struct sh_dmae_slave_config dma_slaves[] = {
 	{