[3c90x] Fix a3c90x_close() and a3c90x_remove() methods.

Both methods disabled packet tx and rx just to have it enabled again
by calling a3c90x_reset().
Fixed by disabling tx and rx after the call to a3c90x_reset().

Tested by booting Ubuntu intrepid(8.10) directly from gPXE and pxelinux.
Tested on 3c905, 3c905B, 3c905C.

Signed-off-by: Marty Connor <mdc@etherboot.org>

src/drivers/net/3c90x.c

 
 	DBGP("a3c90x_remove\n");
 
-	unregister_netdev(netdev);
+	a3c90x_reset(inf_3c90x);
 
 	/* Disable the receiver and transmitter. */
 	outw(cmdRxDisable, inf_3c90x->IOAddr + regCommandIntStatus_w);
 	outw(cmdTxDisable, inf_3c90x->IOAddr + regCommandIntStatus_w);
 
-	a3c90x_reset(inf_3c90x);
+	unregister_netdev(netdev);
 	netdev_nullify(netdev);
 	netdev_put(netdev);
 }
 
 	DBGP("a3c90x_close\n");
 
+	a3c90x_reset(inf_3c90x);
 	outw(cmdRxDisable, inf_3c90x->IOAddr + regCommandIntStatus_w);
 	outw(cmdTxDisable, inf_3c90x->IOAddr + regCommandIntStatus_w);
-	a3c90x_reset(inf_3c90x);
 	a3c90x_free_resources(inf_3c90x);
 }