arm: vectors: provide protypes from vectors.S

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
diff --git a/arch/arm/lib/interrupts.c b/arch/arm/lib/interrupts.c
index f6b7c03..9019736 100644
--- a/arch/arm/lib/interrupts.c
+++ b/arch/arm/lib/interrupts.c
@@ -21,6 +21,7 @@
 
 #include <common.h>
 #include <asm/proc-armv/ptrace.h>
+#include <asm/u-boot-arm.h>
 
 DECLARE_GLOBAL_DATA_PTR;