ci: update errata and abi tests

- Merge errata all tests with ABI tests.
- Add additional cortex-X4 and cortex-X925 FVP based tests for errata
  all and ABI tests.

Change-Id: Ifbce887dd400485699da72dc0a28c2ea151900d0
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
8 files changed