microblaze: Disable JFFS2 support

JFFS2 is not maintained for quite a long time and none should be using it.
Please use other filesystems for flashes like UBIFS instead.

Also remove jffs to MTD map but MTD map is for example that's why it won't
affect anything.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a8239acee8886229fdbff66142c46d522e3fe851.1731659933.git.michal.simek@amd.com
2 files changed