[ARM] footbridge: add isa_init_irq() to common header

isa_init_irq() is defined in arch/arm/mach-footbridge/isa-irq.c
and used in arch/arm/mach-footbridge/common.c but there is no
definition in any header. Move the definition in common.c to
common.h to stop the sparse warning:

isa-irq.c:118:13: warning: symbol 'isa_init_irq' was not declared.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index 9ee80a211d3c..8bfd06aeb64d 100644
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/arch/arm/mach-footbridge/isa-irq.c
@@ -28,6 +28,8 @@
 #include <asm/irq.h>
 #include <asm/mach-types.h>
 
+#include "common.h"
+
 static void isa_mask_pic_lo_irq(unsigned int irq)
 {
         unsigned int mask = 1 << (irq & 7);