ppc: cleanup compiler errors/warnings

Current u-boot top of tree builds with warnings/errors for
the following boards:

ads5121 cpci5200 mecp5200 v38b IAD210 MBX MBX860T NX823
RPXClassic debris PN62

following patch solves this.

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>

board/siemens/IAD210/IAD210.c

@@ -23,6 +23,7 @@
 
 #include <common.h>
 #include <mpc8xx.h>
+#include <net.h>
 #include "atm.h"
 #include <i2c.h>
 
@@ -291,7 +292,7 @@ int misc_init_r(void)
 
 	if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
 		board_get_enetaddr(enetaddr);
-		eth_putenv_enetaddr("ethaddr", enetaddr);
+		eth_setenv_enetaddr("ethaddr", enetaddr);
 	}
 
 	return 0;