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/h2200/h2200.c b/board/h2200/h2200.c
index 01f8e67..2a2b797 100644
--- a/board/h2200/h2200.c
+++ b/board/h2200/h2200.c
@@ -11,6 +11,7 @@
 #include <asm/arch/pxa-regs.h>
 #include <asm/io.h>
 #include <usb.h>
+#include <asm/mach-types.h>
 
 DECLARE_GLOBAL_DATA_PTR;