Merge changes Id7bdbc9b,Ia813e051,I2c437380,I736724cc,I454fb40a, ... into integration

* changes:
  renesas: rzg: Add support to identify EK874 RZ/G2E board
  drivers: renesas: common: watchdog: Add support for RZ/G2E
  drivers: renesas: rzg: Add QoS support for RZ/G2E
  drivers: renesas: rzg: Add PFC support for RZ/G2E
  drivers: renesas: common: Add support for DRAM initialization on RZ/G2E SoC
  renesas: rzg: Add support to identify HopeRun HiHope RZ/G2N board
  drivers: renesas: common: emmc: Select eMMC channel for RZ/G2N SoC
  drivers: renesas: rzg: Add QoS support for RZ/G2N
  drivers: renesas: rzg: Add PFC support for RZ/G2N
  drivers: renesas: common: Add support for DRAM initialization on RZ/G2N SoC
  renesas: rzg: Add support to identify HopeRun HiHope RZ/G2H board
  drivers: renesas: common: emmc: Select eMMC channel for RZ/G2H SoC
  drivers: renesas: rzg: Add QoS support for RZ/G2H
  drivers: renesas: rzg: Add PFC support for RZ/G2H
  drivers: renesas: common: Add support for DRAM initialization on RZ/G2H SoC
  drivers: renesas: rzg: Switch using common ddr code
  drivers: renesas: ddr: Move to common