Merge branch 'master_sh/gen4/initial' of https://source.denx.de/u-boot/custodians...

- Initial R-Car Generation 4 support

diff --combined drivers/spi/Kconfig
index b44565b,b1d4b6c..4f435fd
--- 1/drivers/spi/Kconfig
--- 2/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@@ -381,7 -381,7 +381,7 @@@ config SPI_QU
  
  config RENESAS_RPC_SPI
        bool "Renesas RPC SPI driver"
-       depends on RCAR_GEN3 || RZA1
+       depends on RCAR_64 || RZA1
        imply SPI_FLASH_BAR
        help
          Enable the Renesas RPC SPI driver, used to access SPI NOR flash
@@@ -573,7 -573,6 +573,7 @@@ endif # if DM_SP
  
  config FSL_ESPI
        bool "Freescale eSPI driver"
 +      depends on MPC85xx
        imply SPI_FLASH_BAR
        help
          Enable the Freescale eSPI driver. This driver can be used to