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

* for-next/selftests:
  kselftest/arm64: Add 2025 dpISA coverage to hwcaps
  kselftest/arm64: Add tests for POR_EL0 save/reset/restore
  kselftest/arm64: Move/add POE helpers to test_signals_utils.h
  kselftest/arm64: Add POE as a feature in the signal tests
  selftests/mm: Fix resv_sz when parsing arm64 signal frame