Since libva can be built without virtual/mesa, opengl
requirement is only true for glx backend and it's
incorrect for wayland and x11 backends.
(From OE-Core rev: 47d32813a3fd67e75cddce255b40b43fb09e1497)
Signed-off-by: Bartłomiej Burdukiewicz <bartlomiej.burdukiewicz@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>