Convert ALOGV to ALOGD in various libgui_test cases

ALOGV was not appearing in the logs collected by TradeFed/atest/friends.
I don't want to investigate too deeply right now, since ALOGD works fine.

Bug: 257123981
Bug: 277347398
Change-Id: If3811e5e553ecf97c35967128f3d59b0079d9f3a
Test: N/A (manually compared logs collected after running atest)