sdm660-common: prop: Enable config_avoidGfxAccel

- This flag turns off GPU/CPU intensive UI effects and
  reduces the RAM footprint.

- Using this is a better compromise than the 'low_ram' flag
  as this does not disable features in the rom but still
  reduces RAM usage and gives better smoothness in the UI.

Signed-off-by: drkphnx <dark.phnx12@gmail.com>
Signed-off-by: 7Soldier <reg.fm4@gmail.com>
Change-Id: Ic0e7a55a7c6e760e8a5172c6de4ccffcbe28d2fa
Signed-off-by: DarkJoker360 <simoespo159@gmail.com>
Signed-off-by: clarencelol <clarencekuiek@icloud.com>
Signed-off-by: pix106 <sbordenave@gmail.com>

properties/vendor.prop

@@ -222,6 +222,7 @@ debug.egl.hw=1
 debug.enable.sglscale=1
 debug.sf.recomputecrop=0
 ro.hwui.render_ahead=3
+ro.config.avoid_gfx_accel=true
 
 # Sensors
 ro.vendor.sensors.facing=false