qcacld-3.0: Add feature flag for DataStall

Add feature flag WLAN_SUPPORT_DATA_STALL to
support host datastall.

Change-Id: I263da2de9af1f2a1d17027601fc625c31d5ad76d
CRs-Fixed: 2564310

Kbuild

@@ -2829,6 +2829,7 @@ cppflags-$(CONFIG_WLAN_FEATURE_DP_EVENT_HISTORY) += -DWLAN_FEATURE_DP_EVENT_HIST
 cppflags-$(CONFIG_WLAN_DP_PER_RING_TYPE_CONFIG) += -DWLAN_DP_PER_RING_TYPE_CONFIG
 cppflags-$(CONFIG_SAP_DHCP_FW_IND) += -DSAP_DHCP_FW_IND
 cppflags-$(CONFIG_WLAN_DP_PENDING_MEM_FLUSH) += -DWLAN_DP_PENDING_MEM_FLUSH
+cppflags-$(CONFIG_WLAN_SUPPORT_DATA_STALL) += -DWLAN_SUPPORT_DATA_STALL
 
 ifdef CONFIG_MAX_LOGS_PER_SEC
 ccflags-y += -DWLAN_MAX_LOGS_PER_SEC=$(CONFIG_MAX_LOGS_PER_SEC)