configure/freedreno: enable freedreno by default

Now that enabling freedreno doesn't automatically enable kgsl, lets
enable it by default.  The drm/msm driver has been upstream for a
while now, and it's ABI is locked.  So I don't think we need to keep
calling it experimental.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
1 file changed