weston-wfits: check output->make equal weston-X11 too

Weston changed the output->make for the x11-compositor from
xwayland to weston-X11:

http://cgit.freedesktop.org/wayland/weston/commit/?id=22e16b656f67ee577e32a7af91f443840fc3aee1

For uinput emulation on x11 backend, we need to check whether
output->make is either weston-X11 or xwayland (for backwards
compat) now.

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>