Fix segfault in i855crt when no xv support in xserver
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#3 Fix segfault in i855crt when no xv support in xserver
If you run i855crt when the xserver is using the vesa
driver, rather than i810 driver, then i855crt segfaults
while trying to setup the xvideo overlay (which of
course it cannot do since vesa driver does not support xv).
This trivial patch prevents i855crt segfaulting in this
situation.
Patch to i855crt.c to prevent segfault if no xv support in xserver