drm/i915/guc: Update firmware to v62.0.0

Most of the changes to the 62.0.0 firmware revolved around CTB
communication channel. Conform to the new (stable) CTB protocol.

v2:
 (Michal)
  Add values back to kernel DOC for actions
 (Docs)
  Add 'CT buffer' back in to fix warning

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
[mattrope: Tweaked kerneldoc while pushing as suggested by Daniele/Michal]
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210616001302.84233-3-matthew.brost@intel.com