[U-Boot] Recent commit to env_nand.c causing saveenv to hang

Hi Stephen,

I checked out the latest code and try flashing on DM355 for NAND boot mode, I saw that saveenv was causing a hang. A little debugging pointed me to this patch http://patchwork.ozlabs.org/patch/174069/ reverting this patch saveenv works fine. Has this patch being tested ? Or is that I am missing out some where.

Thx, --Prabhakar Lad