tools headers UAPI: Sync drm/i915_drm.h with the kernel sources

To pick the change in:

66137f54ccd7 ("drm: i915_drm.h: delete duplicated words in comments")

That don't result in any changes in tooling, just silences this perf
build warning:

Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h

Cc: Adrian Hunter <[e-mail]>
Cc: Daniel Vetter <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Randy Dunlap <[e-mail]>
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/include/uapi/drm/i915_drm.h

···
  *	cause the related events to not be seen.
  *
  * I915_RESET_UEVENT - Event is generated just before an attempt to reset the
- *	the GPU. The value supplied with the event is always 1. NOTE: Disable
+ *	GPU. The value supplied with the event is always 1. NOTE: Disable
  *	reset via module parameter will cause this event to not be seen.
  */
 #define I915_L3_PARITY_UEVENT		"L3_PARITY_ERROR"
···
 
 	/**
 	 * The value specifies which set of OA unit metrics should be
-	 * be configured, defining the contents of any OA unit reports.
+	 * configured, defining the contents of any OA unit reports.
 	 *
 	 * This property is available in perf revision 1.
 	 */