lib/igt_gt: Fix unused variable warning for non-x86 targets

Moved variable declaration inside #if case to avoid unused variable warnings
on non-x86 targets.

Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
1 file changed