clean build: Fix arm build warnings

Fix remaining arm warnings - except for the mess in the NetWinder FP
emulator.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6766 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 3250fb8..d6362ca 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -690,7 +690,7 @@
        pointer.  */
 }
 
-void do_interrupt_v7m(CPUARMState *env)
+static void do_interrupt_v7m(CPUARMState *env)
 {
     uint32_t xpsr = xpsr_read(env);
     uint32_t lr;