8becb80c43
This feature provided CPM_IOACC_CTL_EL3, a lone system register that has been carried over since the original ARM64 implementation, where it was the only processor-specific register in a long list of architectural sysregs. We don't need it here. It's been used as a generic processor-specific sysreg in tests, but the functionality they target is now better covered in other more exhaustive tests.