omap3: board: add missing include and proto

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
diff --git a/arch/arm/cpu/armv7/omap3/sys_info.c b/arch/arm/cpu/armv7/omap3/sys_info.c
index ce254cf..bbb65bb 100644
--- a/arch/arm/cpu/armv7/omap3/sys_info.c
+++ b/arch/arm/cpu/armv7/omap3/sys_info.c
@@ -16,6 +16,8 @@
 #include <asm/io.h>
 #include <asm/arch/mem.h>	/* get mem tables */
 #include <asm/arch/sys_proto.h>
+#include <asm/bootm.h>
+
 #include <i2c.h>
 #include <linux/compiler.h>