[PATCH] fs/qnx4/*: fix sparse warnings

This patch fixes sparse warnings in the qnx4fs (and might even make
qnx4fs work on big-endian boxes)

Signed-off-by: Alexey Dobriyan <adobriyan@mail.ru>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Anders Larsen <al@alarsen.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>