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/ti/panda/panda.c b/board/ti/panda/panda.c
index 72aabb2..6ffb53c 100644
--- a/board/ti/panda/panda.c
+++ b/board/ti/panda/panda.c
@@ -6,6 +6,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
+#include <asm/mach-types.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/clock.h>