Update to the version from the gstreamer monorepo, bringing it back
into line with the other gstreamer revisions.
Drop the libsoup-2.4 dependency which disables the webrtc code, we
weren't building that anyway as it needs libnice enabled in
gstreamer-plugins-bad.
(From OE-Core rev: 446fadaa147be6656e37c612de772fa04607130f)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>