Pull i915_drm.h to include

kernel commit ba4fda620a5f7db521aa9e0262cf49854c1b1d9c
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Feb 18 10:58:21 2019 +0000

    drm/i915: Optionally disable automatic recovery after a GPU reset

for improved resilience in handling GPU hangs.