Merge tag 'android-10.0.0_r31' into lineage-17.1-android-10.0.0_r31

Android 10.0.0 release 31

* tag 'android-10.0.0_r31': (28 commits)
  Version bump to QQ2A.200305.003 [core/build_id.mk]
  Version bump to QQ2A.200305.002 [core/build_id.mk]
  Update Security String to 2020-03-05 Bug:147450082 (cherry picked from commit 20c6e7db)
  Version bump to QQ2A.200301.001 [core/build_id.mk]
  Update Security String to 2020-03-01 Bug:147450082
  Version bump to QQ2A.200110.003 [core/build_id.mk]
  Version bump to QQ2A.191219.002 [core/build_id.mk]
  Update Security String to 2020-02-05 bug:146378789
  Update Security String to 2020-02-01 bug:146378789
  Adding developer_gsi_keys.mk
  Version bump to QQ2A.191211.002 [core/build_id.mk]
  Version bump to QQ2A.191127.002 [core/build_id.mk]
  Version bump to QQ2A.191125.002 [core/build_id.mk]
  Allow files generated by droidstubs to be copied in the SDK
  Set SPL to 2020-01-05
  Version bump to QQ2A.191114.002 [core/build_id.mk]
  Set SPL to 2020-01-01
  Add Multidisplay App and so to whitelist
  Delete AOSP/Email app.
  Add aapt2 to otatools.zip
  ...

Change-Id: I49e031900486f3820357ecc91257cb25fe387716