[VIRT-262 # ARMv8.1-PAN Privileged Access Never]

Started, based on VHE patch set due to mmu_idx reorg therein. Needs some minor re-work to handle Secure EL1.

[VIRT-273 # ARMv8.2-ATS1E1, AT S1E1R and AT S1E1W instruction variants ]

Started.

[VIRT-327 # Richard's upstream QEMU work ]

Some soft-freeze bug fixing of stuff that I broke this cycle. Some patch review.

[Kernel]

Posted v7 of the ARMv8.5-RNG patch set. There's some significant mis-communication going on between me and Mark Rutland; I have no idea what he wants at this point...

[GCC]

Committed the base asm-flags patch set. Posted a follow-up to un-break thumb1, and add tests for it.

r~