Merge changes I5044588e,Ibc815c02,I191645b8

* changes:
  Add test-kut-pkvm configuration
  Add command line options for controlling PKVM mode
  Fix error message for invalid command line opts
tree: 210288aceb5c5a0b86fba5e28abb3e06512702ca
  1. Makefile
  2. aarch64/
  3. common.inc
  4. kvm-unit-tests/