Bump to latest upstream version.

Manually rebased:
  030-h264-mips.patch
Backported:
  FFmpeg/FFmpeg/commit/2f0a214a6202516b4dda2bb22b6b3ac20e465d6d

Tested using:
ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30 testsrc.mpg

Resulting mpg was good.

Build system: x86_64
Build-tested: bcm2711/RPi4B
Run-tested: bcm2711/RPi4B

Signed-off-by: John Audia <graysky@archlinux.us>

The crude loop I wrote to come up with this changeset:

  find -L package/feeds/packages/ -name patches | \
  sed 's/patches$/refresh/' | sort | xargs make

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

No idea why.

Patch submitted upstream:
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200503090023.29418-1-rosenp@gmail.com/

Signed-off-by: Rosen Penev <rosenp@gmail.com>