* changes:
  feat(plat/rcar3): emit RPC status to DT fragment if RPC unlocked
  feat(plat/rcar3): add a DRAM size setting for M3N
  feat(plat/rcar3): update IPL and Secure Monitor Rev.3.0.0
  feat(plat/rcar3): add new board revision for Salvator-XS/H3ULCB
  feat(drivers/rcar3): ddr: add function to judge a DDR rank
  fix(drivers/rcar3): ddr: update DDR setting for H3, M3, M3N
  fix(drivers/rcar3): i2c_dvfs: fix I2C operation
  fix(drivers/rcar3): fix CPG registers redefinition
  fix(drivers/rcar3): emmc: remove CPG_CPGWPR redefinition
  fix(plat/rcar3): generate two memory nodes for larger than 2 GiB channel 0
  refactor(plat/rcar3): factor out DT memory node generation
  feat(plat/rcar3): add optional support for gzip-compressed BL33