tests: update mke2fs.conf to create 256 byte inodes by default

The regression tests have their own private copy of mke2fs which is
used when tests create file systems.  Since we are now using 256 byte
inodes by default, the tests should reflect this.

While we're at it, modify the r_move_itable test so it actually tests
moving the inode table.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
46 files changed