[JFFS2] Remove flash offset argument from various functions.

We don't need the upper layers to deal with the physical offset. It's
_always_ c->nextblock->offset + c->sector_size - c->nextblock->free_size
so we might as well just let the actual write functions deal with that.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --cc fs/jffs2/dir.c
Simple merge

diff --cc fs/jffs2/file.c
Simple merge

diff --cc fs/jffs2/fs.c
Simple merge

diff --cc fs/jffs2/gc.c
Simple merge

diff --cc fs/jffs2/nodelist.h
Simple merge

diff --cc fs/jffs2/nodemgmt.c
Simple merge

diff --cc fs/jffs2/wbuf.c
Simple merge

diff --cc fs/jffs2/write.c
Simple merge

diff --cc fs/jffs2/xattr.c
Simple merge