Merge changes I41001484,Ic734696a,I84741535,I85aaaf3a,Ibd5423b7, ... into integration

* changes:
  feat(plat/mediatek/mt8186): add reboot function for PSCI
  feat(plat/mdeiatek/mt8186): add power-off function for PSCI
  feat(plat/mediatek/mt8186): apply erratas for MT8186
  feat(plat/mediatek/mt8186): add MCDI drivers
  feat(plat/mediatek/mt8186): add CPU hotplug
  feat(plat/mediatek/mt8186): add RTC drivers
  fix(plat/mediatek/mt8186): extend MMU region size
  feat(plat/mediatek/mt8186): add DCM driver
  feat(plat/mediatek/mt8186): add pinctrl support
  feat(plat/mediatek/mt8186): add sys_cirq support
  feat(plat/mediatek/mt8186): initialize GIC
  feat(plat/mediatek/mt8186): add SiP service
  feat(plat/mediatek/mt8186): add pwrap and pmic driver
  feat(plat/mediatek/mt8186): initialize delay_timer
  feat(plat/mediatek/mt8186): initialize systimer
  feat(plat/mediatek/mt8186): add EMI MPU basic driver