drm/i915/gt: Remove repeated words from comments

Checkpatch spotted a few repeated words in the comment, genuine
mistakes.

Signed-off-by: Chris Wilson <[e-mail]>
Reviewed-by: Michal Wajdeczko <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Signed-off-by: Daniel Vetter <[e-mail]>

drivers/gpu/drm/i915/gt/intel_execlists_submission.c

···
 static void
 logical_ring_default_vfuncs(struct intel_engine_cs *engine)
 {
-	/* Default vfuncs which can be overriden by each engine. */
+	/* Default vfuncs which can be overridden by each engine. */
 
 	engine->resume = execlists_resume;
 

drivers/gpu/drm/i915/gt/intel_ggtt.c

···
 }
 
 /*
- * Certain Gen5 chipsets require require idling the GPU before
+ * Certain Gen5 chipsets require idling the GPU before
  * unmapping anything from the GTT when VT-d is enabled.
  */
 static bool needs_idle_maps(struct drm_i915_private *i915)

drivers/gpu/drm/i915/gt/intel_reset_types.h

···
 	 *
 	 * #I915_WEDGED_ON_INIT - If we fail to initialize the GPU we can no
 	 * longer use the GPU - similar to #I915_WEDGED bit. The difference in
-	 * in the way we're handling "forced" unwedged (e.g. through debugfs),
+	 * the way we're handling "forced" unwedged (e.g. through debugfs),
 	 * which is not allowed in case we failed to initialize.
 	 *
 	 * #I915_WEDGED_ON_FINI - Similar to #I915_WEDGED_ON_INIT, except we

drivers/gpu/drm/i915/gt/intel_workarounds.c

···
 		     PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
 
 	/* Use Force Non-Coherent whenever executing a 3D context. This is a
-	 * workaround for for a possible hang in the unlikely event a TLB
+	 * workaround for a possible hang in the unlikely event a TLB
 	 * invalidation occurs during a PSD flush.
 	 */
 	/* WaForceEnableNonCoherent:bdw,chv */

drivers/gpu/drm/i915/gt/selftest_execlists.c

···
 	err = wait_for_submit(engine, rq, HZ / 2);
 	i915_request_put(rq);
 	if (err) {
-		pr_err("%s: preemption request was not submited\n",
+		pr_err("%s: preemption request was not submitted\n",
 		       engine->name);
 		err = -ETIME;
 	}