imx: mx7d: Add RDC support

Add the peripherals/masters definitions and registers base addresses
for mx7d RDC.

Signed-off-by: Ye.Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-mx7/imx-rdc.h b/arch/arm/include/asm/arch-mx7/imx-rdc.h
new file mode 100644
index 0000000..dbeed56
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx7/imx-rdc.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:  GPL-2.0+
+ */
+
+#ifndef __IMX_RDC_H__
+#define __IMX_RDC_H__
+
+#if defined(CONFIG_MX7D)
+#include "mx7d_rdc.h"
+#else
+#error "Please select cpu"
+#endif	/* CONFIG_MX7D */
+
+#endif	/* __IMX_RDC_H__*/