BACKPORT: f2fs: do not set compression bit if kernel doesn't support

If kernel doesn't have CONFIG_F2FS_FS_COMPRESSION, a file having FS_COMPR_FL via
ioctl(FS_IOC_SETFLAGS) is unaccessible due to f2fs_is_compress_backend_ready().
Let's avoid it.

Bug: 240921972
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit d5a44717f6e0f0943808671e36b1909619707016)
Change-Id: Ieb0f8945175ea5ccb0060690e882f054360fb8f0