qcacld-3.0: Enable DP_TX_TRACKING flag

Enable DP_TX_TRACKING flag for lithium

Change-Id: I952dcf44ce6cb282f839d5af13482a4272d62693
CRs-Fixed: 3111510

Kbuild

@@ -4239,6 +4239,8 @@ cppflags-$(CONFIG_FEATURE_MCL_REPEATER) += -DFEATURE_MCL_REPEATER
 
 ccflags-$(CONFIG_IPA_WDI3_TX_TWO_PIPES) += -DIPA_WDI3_TX_TWO_PIPES
 
+cppflags-$(CONFIG_DP_TX_TRACKING) += -DDP_TX_TRACKING
+
 KBUILD_CPPFLAGS += $(cppflags-y)
 
 # Currently, for versions of gcc which support it, the kernel Makefile