qcacld-3.0: Fix camelCase issues with struct hdd_tx_rx_stats

Multiple fields within struct hdd_tx_rx_stats are currently defined
with camelCase. Rename these to align with the Linux coding style
which states "mixed-case names are frowned upon."

Change-Id: I28f81baab8ed43e3e87449e8a4476e540477b57a
CRs-Fixed: 2130212
diff --git a/core/hdd/src/wlan_hdd_ipa.c b/core/hdd/src/wlan_hdd_ipa.c
index 79b3753..43542f4 100644
--- a/core/hdd/src/wlan_hdd_ipa.c
+++ b/core/hdd/src/wlan_hdd_ipa.c
@@ -3846,12 +3846,12 @@
 
 	cpu_index = wlan_hdd_get_cpu();
 
-	++adapter->hdd_stats.hddTxRxStats.rxPackets[cpu_index];
+	++adapter->hdd_stats.tx_rx_stats.rx_packets[cpu_index];
 	result = hdd_ipa_aggregated_rx_ind(skb);
 	if (result == NET_RX_SUCCESS)
-		++adapter->hdd_stats.hddTxRxStats.rxDelivered[cpu_index];
+		++adapter->hdd_stats.tx_rx_stats.rx_delivered[cpu_index];
 	else
-		++adapter->hdd_stats.hddTxRxStats.rxRefused[cpu_index];
+		++adapter->hdd_stats.tx_rx_stats.rx_refused[cpu_index];
 
 	HDD_IPA_INCREASE_NET_SEND_COUNT(hdd_ipa);
 }