tests/gem_reset_stats: Fix retrieval of hangcheck stats expectation

The test expected IOCTL 'I915_GET_RESET_STATS' would return an error
when not root. That is no longer true in the driver since commit
4c9c0d09741d ("drm/i915: Fix retrieval of hangcheck stats") and therefore
the test was incorrectly failing.

v2:
	- Add the commit that changed the behaviour in the Driver to the
	  commit message. (Michel)

v3:
	- Reuse get_reset_count instead of implementing a new function.
	  (Michel)

Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Antonio Argenziano <antonio.argenziano@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
1 file changed