Game Driver: get driver build date info from Game Driver apk

Get the driver build date info from read-only system property
ro.gfx.driver.build_date for apps using system built-in driver, while
getting the Game Driver build date info from the apk's meta-data.

Bug: 123156461
Test: Build, flash and boot. Verify the GpuService receiver side.
Change-Id: Ie4acb658c9b1776179e2bb72d0b434dcf0a9a856