[Bug 796118] msdk: allow build against open source msdk

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=796118

--- Comment #1 from sreerenj <bsreerenj at gmail.com> ---
There is a bug against lu-zero's implementation and open source msdk.

https://github.com/lu-zero/mfx_dispatch/issues/50#issuecomment-388978826

https://github.com/Intel-Media-SDK/MediaSDK/issues/199

But it is better to have this patch since customers are using different
versions of msdks.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.