Fix xtra args positioning for hostapd systemd service unit file (again)

[abeltrano]

Type

• Bug fix
• Feature addition
• Feature update
• Documentation
• Build Infrastructure

Side Effects

• Breaking change
• Non-functional change

Goals

• Ensure hostapd can be controlled via systemd whether extra arguments are provided or not.

Technical Details

• hostapd is picky and expects the configuration file argument to come directly after the -i flag, so any extra arguments must be positioned prior to this flag. So, move ${HOSTAPD_XTRA_ARGS} to be the first argument for hostapd.

Test Results

• Ran sudo systemctl start hostapd@wlx08beac0696fe on a Linux machine and ensured the hostapd service came up:

shadowfax@mrstux:/etc/systemd/system$ sudo systemctl status hostapd@wlx08beac0696fe
● hostapd@wlx08beac0696fe.service - Hostapd Daemon
     Loaded: loaded (/etc/systemd/system/hostapd@.service; disabled; preset: enabled)
     Active: active (running) since Thu 2024-01-18 17:17:29 UTC; 5min ago
   Main PID: 24752 (hostapd)
      Tasks: 1 (limit: 18968)
     Memory: 1.0M
        CPU: 1.371s
     CGroup: /system.slice/system-hostapd.slice/hostapd@wlx08beac0696fe.service
             └─24752 /home/shadowfax/src/microsoft/netremote-cmake/out/install/dev-linux/sbin/hostapd -i wlx08beac0696fe /etc/hostapd/hostapd-wlx08beac0696fe.conf

Jan 18 17:17:29 mrstux systemd[1]: Started hostapd@wlx08beac0696fe.service - Hostapd Daemon.
Jan 18 17:17:30 mrstux hostapd[24752]: wlx08beac0696fe: interface state UNINITIALIZED->ENABLED
Jan 18 17:17:30 mrstux hostapd[24752]: wlx08beac0696fe: AP-ENABLED

Reviewer Focus

• None

Future Work

• None

Checklist

• Build target all compiles cleanly.
• clang-format and clang-tidy deltas produced no new output.
• Newly added functions include doxygen-style comment block.