Merge changes I3c0a402f,I9ce5b9df,I08719015,If541278f,I99f1a697 into integration

* changes:
  doc: renesas: Update code owner for Renesas platforms
  doc: renesas: Document platforms based on RZ/G2 SoC's
  renesas: rzg: Add PFC support for RZ/G2M
  renesas: rzg: Add QoS support for RZ/G2M
  renesas: rzg: Add support for DRAM initialization

drivers/renesas/rzg/qos/G2M/qos_init_g2m_v11.h

+/*
+ * Copyright (c) 2020, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef QOS_INIT_G2M_V11_H
+#define QOS_INIT_G2M_V11_H
+
+void qos_init_g2m_v11(void);
+
+#endif /* QOS_INIT_G2M_V11_H */