arm: Add explicit include of <asm/mach-types.h>

Rather than relying on common.h to provide this include, which is going
away at some point, include it explicitly in each file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/amazon/kc1/kc1.c b/board/amazon/kc1/kc1.c
index b3fa789..13a9c6a 100644
--- a/board/amazon/kc1/kc1.c
+++ b/board/amazon/kc1/kc1.c
@@ -17,6 +17,7 @@
 #include <asm/emif.h>
 #include <twl6030.h>
 #include "kc1.h"
+#include <asm/mach-types.h>
 
 DECLARE_GLOBAL_DATA_PTR;