net/miiphy/serial: drop duplicate "NAMESIZE" define

A few subsystems are using the same define "NAMESIZE".  This has been
working so far because they define it to the same number.  However, I
want to change the size of eth_device's NAMESIZE, so rather than tweak
the define names, simply drop references to it.  Almost no one does,
and the handful that do can easily be changed to a sizeof().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/net.h b/include/net.h
index 1707a7f..5560785 100644
--- a/include/net.h
+++ b/include/net.h
@@ -67,8 +67,6 @@
  */
 typedef void	thand_f(void);
 
-#define NAMESIZE 16
-
 enum eth_state_t {
 	ETH_STATE_INIT,
 	ETH_STATE_PASSIVE,
@@ -76,7 +74,7 @@
 };
 
 struct eth_device {
-	char name[NAMESIZE];
+	char name[16];
 	unsigned char enetaddr[6];
 	int iobase;
 	int state;