Merge android-4.9.122 (54068d61) into msm-4.9

* refs/heads/tmp-54068d61:
  Linux 4.9.122
  x86/speculation/l1tf: Exempt zeroed PTEs from inversion

Change-Id: Ib8fcbf79cefcdfbb9c313ef3953e0d0dfa1f4d67
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
Signed-off-by: Minming Qi <mqi@codeaurora.org>