Spacewar: Disable game_default_frame_rate override

-- this feature overrides fps during game play to a
   constant value irrespective of actual game frame rate
   which is not appropriate.

Change-Id: If072c09dd1f448648eef6199fdebff3853145412

properties/vendor.prop

@@ -125,6 +125,7 @@ persist.sys.fuse.passthrough.enable=true
 vendor.gatekeeper.disable_spu=true
 
 # Graphics
+debug.graphics.game_default_frame_rate.disabled=1
 debug.sf.predict_hwc_composition_strategy=0
 debug.sf.treat_170m_as_sRGB=1
 debug.sf.disable_backpressure=1