fix(drivers/rcar3): fix CPG registers redefinition

This commit deletes the value of the redefined CPG register.

Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Change-Id: I05cf4a449ae28adb2ddd59593971a7d0cbcb21de
diff --git a/plat/renesas/common/include/rcar_def.h b/plat/renesas/common/include/rcar_def.h
index 6c5b295..93a65f1 100644
--- a/plat/renesas/common/include/rcar_def.h
+++ b/plat/renesas/common/include/rcar_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, Renesas Electronics Corporation. All rights reserved.
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -120,7 +120,6 @@
 /* Timer control */
 #define RCAR_CNTC_BASE		U(0xE6080000)
 /* Reset */
-#define RCAR_CPGWPR		U(0xE6150900)	/* CPG write protect    */
 #define RCAR_MODEMR		U(0xE6160060)	/* Mode pin             */
 #define RCAR_CA57RESCNT		U(0xE6160040)	/* Reset control A57    */
 #define RCAR_CA53RESCNT		U(0xE6160044)	/* Reset control A53    */