[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>
diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index 9ee80a2..8bfd06a 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);