drm/i915: Rotated view does not need a fence

drm/i915: Rotated view does not need a fence

We do not need to set up a fence for the rotated view.

Display does not need it and no one can access it.

v2: Move code to __i915_vma_set_map_and_fenceable. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 112008a2f12e ("drm/i915: Move map-and-fenceable tracking to the VMA")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit 07ee2bce6a516e0218dba22581803cb8f11bcf82)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>