lynxkdi: get mac address from environment

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>

common/lynxkdi.c

@@ -33,7 +33,7 @@ void lynxkdi_boot (image_header_t *hdr)
 	kbd = gd->bd;
 	parms->clock_ref = kbd->bi_busfreq;
 	parms->dramsz = kbd->bi_memsize;
-	memcpy (parms->ethaddr, kbd->bi_enetaddr, 6);
+	eth_getenv_enetaddr("ethaddr", parms->ethaddr);
 	mtspr (SPRN_SPRG2, 0x0020);
 
 	/* Do a simple check for Bluecat so we can pass the