[U-Boot-Users] Patch to fix jffs2's lack of "data crc".

1. A description of the bug:

When jffs2 reads files it crc's the header but not the data. If the data is corrupt it can cause jffs2 to accept a chunk when it shouldn't. My patch adds in code to crc the data.

2. A CHANGELOG entry

Add crc of data to jffs2 (in jffs2_1pass_build_lists()).