qcacmn: Add wrapper for nla_parse()

The Linux kernel version 4.12 introduced an API change to nla_parse().
Add conditional compilation to call nla_parse with the correct
parameters based on the version of the linux kernel being compiled
against.

Change-Id: Ie904d217a42a2396f8245251a9c90a15dac2c0c9
CRs-Fixed: 2093354

utils/fwlog/dbglog_host.c

@@ -4174,7 +4174,8 @@ static void cnss_diag_cmd_handler(const void *data, int data_len,
 	 * audit note: it is ok to pass a NULL policy here since a
 	 * length check on the data is added later already
 	 */
-	if (nla_parse(tb, CLD80211_ATTR_MAX, data, data_len, NULL)) {
+	if (wlan_cfg80211_nla_parse(tb, CLD80211_ATTR_MAX,
+				    data, data_len, NULL)) {
 		AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("%s: nla parse fails \n",
 							__func__));
 		return;

utils/ptt/src/wlan_ptt_sock_svc.c

@@ -272,7 +272,8 @@ static void ptt_cmd_handler(const void *data, int data_len, void *ctx, int pid)
 	 * audit note: it is ok to pass a NULL policy here since a
 	 * length check on the data is added later already
 	 */
-	if (nla_parse(tb, CLD80211_ATTR_MAX, data, data_len, NULL)) {
+	if (wlan_cfg80211_nla_parse(tb, CLD80211_ATTR_MAX,
+				    data, data_len, NULL)) {
 		PTT_TRACE(QDF_TRACE_LEVEL_ERROR, "Invalid ATTR");
 		return;
 	}