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/miiphy.h b/include/miiphy.h
index 7e70cf8..ca5040e 100644
--- a/include/miiphy.h
+++ b/include/miiphy.h
@@ -86,7 +86,7 @@
 #define BB_MII_DEVNAME	"bb_miiphy"
 
 struct bb_miiphy_bus {
-	char name[NAMESIZE];
+	char name[16];
 	int (*init)(struct bb_miiphy_bus *bus);
 	int (*mdio_active)(struct bb_miiphy_bus *bus);
 	int (*mdio_tristate)(struct bb_miiphy_bus *bus);