Add gralloc tests for locking without CPU usage

Add GraphicsMapperHidlTest#LockUnlockNoCPUUsage and
GraphicsMapperStableCTests#LockUnlockNoCPUUsage.
The tests try to lock buffer without CPU usage.

Bug: 346894869
Test: https://android-build.corp.google.com/builds/abtd/run/L15900030005005775, https://android-build.corp.google.com/builds/abtd/run/L64000030005004833
Change-Id: I32a468ff889cf403239e4b10831d6e16e63ae2b9