miiphy: convert to linux/mii.h

The include/miiphy.h header duplicates a lot of things from linux/mii.h.
So punt all the things that overlap to keep the API simple and to make
merging between U-Boot and Linux simpler.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/board/stx/stxgp3/stxgp3.c b/board/stx/stxgp3/stxgp3.c
index 25d5211..1ed340e 100644
--- a/board/stx/stxgp3/stxgp3.c
+++ b/board/stx/stxgp3/stxgp3.c
@@ -242,10 +242,10 @@
 	miiphy_reset("FCC1", 0x0);
 
 	/* change PHY address to 0x02 */
-	bb_miiphy_write(NULL, 0, PHY_MIPSCR, 0xf028);
+	bb_miiphy_write(NULL, 0, MII_MIPSCR, 0xf028);
 
-	bb_miiphy_write(NULL, 0x02, PHY_BMCR,
-			PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
+	bb_miiphy_write(NULL, 0x02, MII_BMCR,
+			BMCR_ANENABLE | BMCR_ANRESTART);
 #endif /* CONFIG_MII */
 #endif
 }