qcacld-3.0: Change beacon tx WMI API under feature flag

Add feature flag WLAN_WMI_BCN to compile Beacon tx APIs
selectively.

Change-Id: Ie2b4ad0ae7a7c6de7286ed0b215084060a4f34c6
CRs-Fixed: 2483531

Kbuild

@@ -1214,6 +1214,7 @@ endif
 
 ifeq ($(CONFIG_WMI_BCN_OFFLOAD), y)
 WMI_OBJS += $(WMI_OBJ_DIR)/wmi_unified_bcn_api.o
+WMI_OBJS += $(WMI_OBJ_DIR)/wmi_unified_bcn_tlv.o
 endif
 
 ########### FWLOG ###########
@@ -2359,6 +2360,8 @@ else
 cppflags-$(CONFIG_WLAN_OPEN_P2P_INTERFACE) += -DWLAN_OPEN_P2P_INTERFACE
 endif
 
+cppflags-$(CONFIG_WMI_BCN_OFFLOAD) += -DWLAN_WMI_BCN
+
 #Enable wbuff
 cppflags-$(CONFIG_WLAN_WBUFF) += -DWLAN_FEATURE_WBUFF