libhidlbase supports API level(29)

libhidlbase searches impl libs of passthrough HALs from various paths
including VNDK-sp /hw. VNDK-sp path differs in R and Q.

Bug: 158564319
Test: install R-built media apex on Q device
      atest android.media.cts.MediaDrmClearkeyTest
      => see logcat if there's an error to load libmpeg2extractor
Change-Id: I2c9be242d9c81d92ccda81f5d09abcb5ccdcf87b
3 files changed