tree f1123a4b43a1dcf98063ef7a76a90f58e03bacc8
parent 3c2ffd9770b384722f0f41f92bd1b9fe918e6556
author Arthur Hung <arthurhung@google.com> 1553242256 +0800
committer Arthur Hung <arthurhung@google.com> 1553654249 +0800

Fix no output on second physical display

The RefreshRateConfigs only store the configs of default display
when init. But setAllowedDisplayConfigs would get NPE while getting
these configs from secondary display.
We need to cache the configs of external physical display when hotplug.

Bug: 127868178
Test: build and flash mojave device.
Change-Id: Ie1b598e8f77b28a444097deb0e05dda10d197db5