rcar_get3: drivers: ddr: Partly unify register macros between DDR A and B

The ddr_a and ddr_b register macros are the same for the most part,
unify them into a single header.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I8f55d6d779837215339ac0010e8c8ab5f6748d75
diff --git a/plat/renesas/rcar/include/rcar_def.h b/plat/renesas/rcar/include/rcar_def.h
index e2dae9b..0ffbfe9 100644
--- a/plat/renesas/rcar/include/rcar_def.h
+++ b/plat/renesas/rcar/include/rcar_def.h
@@ -221,9 +221,11 @@
 #define	CPG_PLL0CR			(CPG_BASE + 0x00D8U)
 #define	CPG_PLL2CR			(CPG_BASE + 0x002CU)
 #define	CPG_PLL4CR			(CPG_BASE + 0x01F4U)
+#define CPG_CPGWPCR			(CPG_BASE + 0x0904U)
 /* RST Registers */
 #define	RST_BASE			(0xE6160000U)
 #define	RST_WDTRSTCR			(RST_BASE + 0x0054U)
+#define RST_MODEMR			(RST_BASE + 0x0060U)
 #define	WDTRSTCR_PASSWORD		(0xA55A0000U)
 #define	WDTRSTCR_RWDT_RSTMSK		((uint32_t)1U << 0U)
 /* MFIS Registers */