sync-vlc.sh: script for sync from upstream
bump from upstream vlc-android(master)

  vlc-android: 2b8c7e2efa
  vlc: efd5eca5
patches/ports-android/target: simplify
patches/ports-android: merge upstream
patches/vlc/module-lite: update ffmpeg hash
patches/vlc: ignore some patches
bump from upstream vlc-android(master)

  vlc-android: 251ba84b66
  vlc: 2dbc6647
patches/ports-android/module-lite: merge
patches/vlc: MediaCodec: simplify jni thread attach/detach
patches/ports-android: simplify jni thread attach/detach
patches/vlc: improve ringbuf, vsl, es_out_managed
patches/vlc: fix mediacodec, vsl, ringbuf
patches/ports-android: fix jni bugs
patches/ports-android: fix jni local reference overflow