Merge "libmpeg2extractor: Add host support" am: 32fdde7c37 am: 80513db00a am: a0706cae8a am: 958e007981 am: 269431f1bd

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1355671

Change-Id: I26c88e7995e8f8c993861644609cf76a5b4b9fb3