Merge changes from topic "hm/handoff-mb" into integration

* changes:
  feat(arm): support boot info handoff and event log
  fix(arm): update tsp_early_platform_setup prototype
  fix(xilinx): update tsp_early_platform_setup prototype
  fix(socionext): update tsp_early_platform_setup prototype
  fix(msm8916): update tsp_early_platform_setup prototype
  feat(tsp): cascade boot arguments to platforms
  feat(fvp): port event log to firmware handoff
  feat(arm): port event log to firmware handoff
  feat(fvp): increase bl2 mmap len for handoff
  feat(measured-boot): add fw handoff event log utils