uboot-imx

Blackfin: drop reference to gd->reloc_off

The reloc_off member no longer exists, so drop it.  Also change this
function so that it is always compiled and prevents latent issues like
this in the future.

Reported-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>