qcacld-3.0: Make tx resource hi/low threshold configurable

Make tx resource hi/low threshold configurable through
config files and update hi threashold from 7.5% to 8%.

Change-Id: I2e52b7910caedf6e0af24242b79e1e9d42c6b85b
CRs-Fixed: 2548100

configs/genoa.usb.debug_defconfig

@@ -10,6 +10,8 @@ CONFIG_PLD_USB_CNSS := y
 # Data Path specific features
 CONFIG_ATH_11AC_TXCOMPACT := n
 CONFIG_QCA_HL_NETDEV_FLOW_CONTROL := y
+CONFIG_TX_RESOURCE_HIGH_TH_IN_PER := 8
+CONFIG_TX_RESOURCE_LOW_TH_IN_PER := 2
 CONFIG_FEATURE_HL_GROUP_CREDIT_FLOW_CONTROL := y
 CONFIG_FEATURE_HL_DBS_GROUP_CREDIT_SHARING := y
 CONFIG_CREDIT_REP_THROUGH_CREDIT_UPDATE := y