Disintegrate asm/system.h for ARM

Disintegrate asm/system.h for ARM.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Russell King <linux@arm.linux.org.uk>
cc: linux-arm-kernel@lists.infradead.org
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 23de98d..730bb00 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -34,6 +34,7 @@
 #include <asm/mach/time.h>
 #include <asm/mach/irq.h>
 #include <asm/mach-types.h>
+#include <asm/system_misc.h>
 
 #include <mach/irqs.h>
 #include <plat/clock.h>