Update the main branch from integration

Merge the following changes:
  - Introduce the new Arm Reference Design-1 AE platform targeting the
    Automotive segment.
  - se-proxy
    - Introduce the pointer access protocol in RSE_COMM.
    - Add support for compile-time configuration of supported services.
    - Fix client_id value handling between RSE and TS.
  - Add encryption support to the Block Storage SP.
  - Introduced an experimental fTPM 2.0 SP deployment.
  - Extend the security related documentation with SP specific threat
    assessment pages.

Signed-off-by: Gyorgy Szing <gyorgy.szing@arm.com>
Change-Id: I5172f96429905ad9054ab9970303f9e437ab086c