qcacld-3.0: Set cds_ol_rx_thread schedule policy to SCHED_RR

On QCS405 platform, it's observed that cds_ol_rx_pkt_freeq is empty
while receiving UDP packets, driver try to allocate cds_ol_rx_pkt in
ol_rx_data_process but failed. This leads to lots of frames got dropped.
Raise cds_ol_rx_thread scheduler policy to SCHED_RR to compete with
CE tasklet scheduler speed. With this change, found cds_ol_rx_pkt_freeq
is not going to be empty while receiving UDP packets.

Change-Id: I4bee3d69c2754ec6be10a2b623b4ebe8b2c0859b
CRs-Fixed: 2373936

Kbuild

@@ -2072,6 +2072,9 @@ cppflags-$(CONFIG_WLAN_SYSFS) += -DWLAN_SYSFS
 cppflags-$(CONFIG_FEATURE_WLAN_RMC) += -DFEATURE_WLAN_RMC
 cppflags-$(CONFIG_FEATURE_BECN_STATS) += -DWLAN_FEATURE_BEACON_RECEPTION_STATS
 
+#Set kernel thread scheduler
+cppflags-$(CONFIG_THREAD_PERFORMANCE) += -DTHREAD_PERFORMANCE
+
 #Enable OL debug and wmi unified functions
 cppflags-$(CONFIG_ATH_PERF_PWR_OFFLOAD) += -DATH_PERF_PWR_OFFLOAD