sm7125: wifi: Switch gEnablePowerSaveOffload to 5

This should improve VoIP calls performance.
Reference: https://android.googlesource.com/device/google/marlin/+/android-7.1.0_r4%5E%21/

Change-Id: Id947f330d516f507b8eff543ffb154e90e1206a2

configs/wifi/WCNSS_qcom_cfg.ini

@@ -220,7 +220,7 @@ gMaxMediumTime = 6000
 gRrmEnable=1
 
 #Enable Power Save offload
-gEnablePowerSaveOffload=4
+gEnablePowerSaveOffload=5
 
 # even if its RSSI is lower by 3dBm than the 2.4Ghz AP
 gRoamPrefer5GHz=1