ARM: spear: Staticize spear1310_io_desc in spear1310.c

'spear1310_io_desc' is used only in this file.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSachin Kamat <sachin.kamat@samsung.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

arch/arm/mach-spear/spear1310.c

@@ -42,7 +42,7 @@ static const char * const spear1310_dt_board_compat[] = {
  * PHYSICAL		VIRTUAL
  * 0xD8000000		0xFA000000
  */
-struct map_desc spear1310_io_desc[] __initdata = {
+static struct map_desc spear1310_io_desc[] __initdata = {
 	{
 		.virtual	= VA_SPEAR1310_RAS_GRP1_BASE,
 		.pfn		= __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE),