units: do more reordering of ordering config

No functional change, just a cleanup to make the subsequent changes easier to
see. This is a continuation of 9810e41942

> The block is reordered and split to have:
>    1. description + documentation
>    2. (optionally) conditions
>    3. all the dependencies

The dependencies for shutdown.target are listed separately because they are the
other deps are for startup, and shutdown.target only matter much later.

units/systemd-rfkill.socket

@@ -10,12 +10,13 @@
 [Unit]
 Description=Load/Save RF Kill Switch Status /dev/rfkill Watch
 Documentation=man:systemd-rfkill.socket(8)
+
 DefaultDependencies=no
 BindsTo=sys-devices-virtual-misc-rfkill.device
 After=sys-devices-virtual-misc-rfkill.device systemd-remount-fs.service
-RequiresMountsFor=/var/lib/systemd/rfkill
 Conflicts=shutdown.target
 Before=shutdown.target
+RequiresMountsFor=/var/lib/systemd/rfkill
 
 [Socket]
 ListenSpecial=/dev/rfkill