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/ronetix/pm9263/pm9263.c b/board/ronetix/pm9263/pm9263.c
index accf16f..1469136 100644
--- a/board/ronetix/pm9263/pm9263.c
+++ b/board/ronetix/pm9263/pm9263.c
@@ -25,6 +25,7 @@
 #include <net.h>
 #endif
 #include <netdev.h>
+#include <asm/mach-types.h>
 
 DECLARE_GLOBAL_DATA_PTR;