test 199: test features2 fixup for the regular case, too

test 199: test features2 fixup for the regular case, too

Eric Sandeen noted that we should not only test the mount ro first, then
remount rw case in 199 but also the regular mount rw case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>