aarch64: Support 2024 Debug Architecture system registers.

aarch64: Support 2024 Debug Architecture system registers.

This patch adds support for following system registers and the spec
can be found here[1].
1. PMBSR_EL12, PMBSR_EL2, PMBSR_EL3, PMBMAR_EL1 depends on FEAT_SPE
   and Armv9.5-A architecture and these are enabled by passing
   -march=armv9.5-a+profile.
2. TRBSR_EL12, TRBSR_EL2, and TRBSR_EL3 depends Armv9.5-A architecture
   and these are enabled by passing -march=armv9.5-a.
3. HFGITR2_EL2 depends on Armv8.8-A architecture and enabled by passing
   -march=armv8.8-a.

[1]: https://developer.arm.com/documentation/ddi0601/2025-03/AArch64-Registers?lang=en