refactor(cpus): convert the Cortex-X1 to use the errata framework

Testing:
  - Manual comparison of disassembly with and without conversion.
  - Using the test script in gerrit - 19136
  - Building with errata and stepping through from ArmDS and running tftf.

Change-Id: Ie3909ef51c28a24728752a08ddf96a48d87d3cd7
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
1 file changed