Merge changes from topic "tegra-downstream-08282020" into integration

* changes:
  Tegra: platform specific BL31_SIZE
  Tegra186: sanity check power state type
  Tegra: fixup CNTPS_TVAL_EL1 delay timer reads
  Tegra: add platform specific 'runtime_setup' handler
  Tegra: remove ENABLE_SVE_FOR_NS = 0
  lib: cpus: denver: add MIDR PN9 variant
  cpus: denver: introduce macro to declare cpu_ops