refactor(errata-abi): workaround platforms non-arm interconnect

The workarounds for these below mentioned errata are not implemented
in EL3, but the flags can be enabled/disabled at a platform level
based on arm/non-arm interconnect IP flag. The ABI helps assist the
Kernel in the process of mitigation for the following errata:

Cortex-A715:   erratum 2701951
Neoverse V2:   erratum 2719103
Cortex-A710:   erratum 2701952
Cortex-X2:     erratum 2701952
Neoverse N2:   erratum 2728475
Neoverse V1:   erratum 2701953
Cortex-A78:    erratum 2712571
Cortex-A78AE:  erratum 2712574
Cortex-A78C:   erratum 2712575

Change-Id: Ie86b7212d731a79e2a0c07649e69234e733cd78d
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>