net: rename NetRxPkt to NetRxPacket

The net code is mostly consistent in using 'Packet' rather than 'Pkt', so
rename the minor detractor to follow suite.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/include/net.h b/include/net.h
index 5a1d36e..88a9513 100644
--- a/include/net.h
+++ b/include/net.h
@@ -331,8 +331,8 @@
 extern IPaddr_t		NetServerIP;		/* Server IP addr (0 = unknown)	*/
 extern volatile uchar * NetTxPacket;		/* THE transmit packet		*/
 extern volatile uchar * NetRxPackets[PKTBUFSRX];/* Receive packets		*/
-extern volatile uchar * NetRxPkt;		/* Current receive packet	*/
-extern int		NetRxPktLen;		/* Current rx packet length	*/
+extern volatile uchar * NetRxPacket;		/* Current receive packet	*/
+extern int		NetRxPacketLen;		/* Current rx packet length	*/
 extern unsigned		NetIPID;		/* IP ID (counting)		*/
 extern uchar		NetBcastAddr[6];	/* Ethernet boardcast address	*/
 extern uchar		NetEtherNullAddr[6];