qcacld-3.0: Enable AC based flow control by default

Enable QCA_AC_BASED_FLOW_CONTROL in Kbuild file for for all
lithium platform, including HST.

CRs-Fixed: 2371232
Change-Id: I7e755d6211106f4a5c8e9d87905f6425ece4c5c3

Kbuild

@@ -2363,6 +2363,9 @@ ccflags-$(CONFIG_HIF_SNOC) += -DCE_SVC_CMN_INIT
 
 ifeq ($(CONFIG_QCA6290_11AX), y)
 cppflags-y += -DQCA_WIFI_QCA6290_11AX
+endif
+
+ifeq ($(CONFIG_LITHIUM), y)
 cppflags-$(CONFIG_WLAN_TX_FLOW_CONTROL_V2) += -DQCA_AC_BASED_FLOW_CONTROL
 endif