qcacld-3.0: Featurize Tx throttle feature

Featurize Tx throttle feature.

Change-Id: Ie97749367b8c4e7af7fe0bee68b15be5946fdd67
CRs-Fixed: 2257918
diff --git a/Kbuild b/Kbuild
index de909f1..bb36be8 100644
--- a/Kbuild
+++ b/Kbuild
@@ -898,6 +898,10 @@
 TXRX_OBJS +=     $(TXRX_DIR)/ol_tx_ll_legacy.o
 endif
 
+ifeq ($(CONFIG_QCA_SUPPORT_TX_THROTTLE), y)
+TXRX_OBJS +=     $(TXRX_DIR)/ol_tx_throttle.o
+endif
+
 ifeq ($(CONFIG_LITHIUM), y)
 ############ DP 3.0 ############
 DP_INC := -I$(WLAN_COMMON_ROOT)/dp/inc \