drm/i915: don't pretend we support ASLE ALS, PFIT, or PFMB

In theory, this should prevent the BIOS from requesting them from us, and
this should be the right thing.

In practice, this is not always the case, and might surprise the BIOS.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_opregion.c

@@ -280,9 +280,7 @@ void intel_opregion_enable_asle(struct drm_device *dev)
 		if (IS_MOBILE(dev))
 			intel_enable_asle(dev);
 
-		iowrite32(ASLE_ALS_EN | ASLE_BLC_EN | ASLE_PFIT_EN |
-			  ASLE_PFMB_EN,
-			  &asle->tche);
+		iowrite32(ASLE_BLC_EN, &asle->tche);
 		iowrite32(1, &asle->ardy);
 	}
 }