[Libva] [ANNOUNCE] libva 1.7.2

[Xiang, Haihao]

Hi all,

Libva 1.7.2 is now available at 
http://www.freedesktop.org/software/vaapi/releases/libva/

* Bump VA API version to 0.39.3
* API: add support for ROI
* Add support for VP9 encoder in VA tracer
* Refine test cases
* Fix the issue of not properly terminating the parsed environment values with '\0'
  https://bugs.freedesktop.org/show_bug.cgi?id=96677

git tag: libva-1.7.2

https://www.freedesktop.org/software/vaapi/releases/libva/libva-1.7.2.tar.bz2

sha1sum a89680d34236fdc63adeec25cf431c005644b8c6  libva-1.7.2.tar.bz2

Thanks
Haihao