qcacld-3.0: Enable single-queu NAPI

Enable single queue NAPI by default on HTT rx path only.

As multi-queue NAPI is being delayed per dependencies, we would
like to enable multi-queue NAPI by default tgo give it a soak time.

Preliminary results show equivalent results with non-NAPI case.
This update does not disable rx-thread or change RPS settings. Eventually
with multi-queue NAPI, rx-threads are expected to be removed and RPS
will be re-evaluated (it is expectyed that there would be no need for it).

Change-Id: Id11e459ea2c0d47428ce7fbcaf628b16d015d70d
CRs-Fixed: 953232

config/WCNSS_qcom_cfg.ini

@@ -464,7 +464,7 @@ isP2pDeviceAddrAdministrated=0
 gEnableRxThread=1
 
 #Enable NAPI
-gEnableNAPI=0
+gEnableNAPI=1
 
 # Set Thermal Power limit
 TxPower2g=10