rxrpc: Be consistent about switch value in rxrpc_send_call_packet()

rxrpc_send_call_packet() should use type in both its switch-statements
rather than using pkt->whdr.type.  This might give the compiler an easier
job of uninitialised variable checking.
Signed-off-by: David Howells <dhowells@redhat.com>

net/rxrpc/output.c

@@ -182,7 +182,7 @@ int rxrpc_send_call_packet(struct rxrpc_call *call, u8 type)
 			     &msg, iov, ioc, len);
 
 	if (ret < 0 && call->state < RXRPC_CALL_COMPLETE) {
-		switch (pkt->whdr.type) {
+		switch (type) {
 		case RXRPC_PACKET_TYPE_ACK:
 			rxrpc_propose_ACK(call, pkt->ack.reason,
 					  ntohs(pkt->ack.maxSkew),