f2fs: remove the needless parameter of f2fs_wait_on_page_writeback

"boo sync" parameter is never referenced in f2fs_wait_on_page_writeback.
We should remove this parameter.

Signed-off-by: Yuan Zhong <yuan.mark.zhong@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --cc fs/f2fs/data.c
Simple merge

diff --cc fs/f2fs/f2fs.h
Simple merge

diff --cc fs/f2fs/gc.c
Simple merge

diff --cc fs/f2fs/inline.c
Simple merge

diff --cc fs/f2fs/inode.c
Simple merge

diff --cc fs/f2fs/segment.c
Simple merge