Consume the packet even if we could not allocate a message block for it in

the Ethernet interrupt. The BeOS version does that, likewise for MOL. Otherwise,
we end up into an infinite loop reporting the memory allocation failure.

I think this is now the expected behavior as we wouldn't have stats
(num_rx_no_mem) for it if we couldn't get out of the EtherIRQ. ;-) Besides,
the packet will be resent for reliable networks.

SheepShaver/src/Unix/Linux/ether_linux.cpp

@@ -497,6 +497,7 @@ void EtherIRQ(void)
 				ether_packet_received(mp);
 			} else {
 				D(bug("WARNING: Cannot allocate mblk for received packet\n"));
+				read(fd, packet, size); // consume this packet
 				num_rx_no_mem++;
 			}
 		}