f2fs: add cp_error check in f2fs_write_compressed_pages

This patch adds cp_error check in f2fs_write_compressed_pages() like we did
in f2fs_write_single_data_page()

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>