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: NHeiko Schocher <hs@denx.de>
Acked-by: NMike Frysinger <vapier@gentoo.org>