qcacld-3.0: Register IPA Tx desc free callback

IPA tx desc free callback function is missed here.
Add it back.

Change-Id: Ic29857816d6d749e1a90219e78f198e7adaaddc0
CRs-Fixed: 2189751

core/hdd/src/wlan_hdd_ipa.c

@@ -5415,6 +5415,9 @@ static int hdd_ipa_setup_iface(struct hdd_ipa_priv *hdd_ipa,
 		goto end;
 	}
 
+	/* Register IPA Tx desc free callback */
+	qdf_nbuf_reg_free_cb(hdd_ipa_nbuf_cb);
+
 	hdd_ipa->num_iface++;
 
 	HDD_IPA_LOG(QDF_TRACE_LEVEL_DEBUG, "exit: num_iface=%d",