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/reset.c b/arch/mips/mach-ath79/reset.c
index a88bcbc..33bf979 100644
--- a/arch/mips/mach-ath79/reset.c
+++ b/arch/mips/mach-ath79/reset.c
@@ -45,7 +45,7 @@
 		/* NOP */;
 }
 
-u32 get_bootstrap(void)
+u32 ath79_get_bootstrap(void)
 {
 	void __iomem *base;
 	u32 reg = 0;