mips: ath79: Rename get_bootstrap into ath79_get_bootstrap

Add a platform prefix for function name in order to make more readable,
and move it into ath79.h

Signed-off-by: Wills Wang <wills.wang@live.com>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/arch/mips/mach-ath79/ar934x/ddr.c b/arch/mips/mach-ath79/ar934x/ddr.c
index 4621d58..2ba1efa 100644
--- a/arch/mips/mach-ath79/ar934x/ddr.c
+++ b/arch/mips/mach-ath79/ar934x/ddr.c
@@ -11,7 +11,7 @@
 #include <asm/addrspace.h>
 #include <asm/types.h>
 #include <mach/ar71xx_regs.h>
-#include <mach/reset.h>
+#include <mach/ath79.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -45,7 +45,7 @@
 	ddr_regs = map_physmem(AR71XX_DDR_CTRL_BASE, AR71XX_DDR_CTRL_SIZE,
 			       MAP_NOCACHE);
 
-	reg = get_bootstrap();
+	reg = ath79_get_bootstrap();
 	if (reg & AR934X_BOOTSTRAP_SDRAM_DISABLED) {	/* DDR */
 		if (reg & AR934X_BOOTSTRAP_DDR1) {	/* DDR 1 */
 			memtype = AR934X_DDR1;