Merge branch 'for-next/cpufeature' into for-next/core

Additional CPU sanity checks for MTE and preparatory changes for systems
where not all of the CPUs support 32-bit EL0.

* for-next/cpufeature:
  arm64: Restrict undef hook for cpufeature registers
  arm64: Kill 32-bit applications scheduled on 64-bit-only CPUs
  KVM: arm64: Kill 32-bit vCPUs on systems with mismatched EL0 support
  arm64: Allow mismatched 32-bit EL0 support
  arm64: cpuinfo: Split AArch32 registers out into a separate struct
  arm64: Check if GMID_EL1.BS is the same on all CPUs
  arm64: Change the cpuinfo_arm64 member type for some sysregs to u64