[aarch64] Updating Aarch64 system registers to 2024-12 spec, fix MSR/MRS lifting to use ReadMSR/WriteMSR intrinsics that take enums, removing the sysregs from the register list of the architecture

* sysregs are no longer registers, add enum for TLBI and AT operands
* add erroneously missing cases for unsupported encodings, add enum for DC operands