libhwc2.1: reset LHBM state while entering AOD mode

Reset LHBM state while entering AOD mode to avoid the sync problem
between the kernel and composer.

Bug: 262677106
Test: enter AOD mode while LHBM is enabled
Change-Id: I0a0f26462acd032df0a4ecf1a3c86b4cbb772ed3
3 files changed