common/config: fix use of MODPROBE_RM_PATIENT_TIMEOUT_ARGS

common/config: fix use of MODPROBE_RM_PATIENT_TIMEOUT_ARGS

When patient module removal support is detected on kmod
(note that this is not yet even merged onto kmod yet but
work in progress) the arguments required for it are not being
set yet. This was a typo, fix this.

This issue was spotted using shellcheck from blktests when adding
patient module removal support there. I'll post a patch next to
let folks evaluate if we should embrace shellcheck on fstests as
well.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>