when using vendor supplied OpenGL stacks no virtual/libgbm may be
provided. An example for this is the Vivante stack for i.MX6.
To get better error message in such cases, add dependency.
(From OE-Core rev: 739b3af0bf1422cdabd13ccac8fbcc60b37d2fa4)
Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>