Adding Wi-Fi AP testcases to Apertis

https://phabricator.apertis.org/T8357

test-cases/wifi-accesspoint-deactivation.yaml

+metadata:
+  name: wifi-accesspoint-deactivation
+  format: "Apertis Test Definition 1.0"
+  image-types:
+    hmi: [ armhf ] 
+    sdk: [ amd64 ]
+  image-deployment:
+    - OSTree
+  type: functional
+  exec-type: manual
+  priority: critical
+  maintainer: "Apertis Project"
+  description: "Test WiFi access point (AP mode) can be activated/deactivated in the common base of Apertis."
+
+  resources:
+    - "2 Wi-Fi USB dongles. (https://www.apertis.org/reference_hardware/extras/)"
+
+  macro_install_packages_preconditions: dnsmasq hostapd
+
+  pre-conditions:
+    - "Ensure that 'wifi-wpa2-psk-accesspoint-setup' test is up and running before executing this test"
+
+  expected:
+    - "The user should be able to enable/disable the Wi-Fi AP setup on the target device, running:"
+    - |
+        >$ sudo hostapd_cli disable
+         Selected interface 'wifi_interface_name'
+         wlxac9e1779c080: AP-DISABLED
+         nl80211: deinit ifname=wlxac9e1779c080 disabled_11b_rates=0
+         wlxac9e1779c080: interface state ENABLED->DISABLED
+         OK
+    - |
+        >wlan0: AP-STA-CONNECTED 0c:9d:92:70:fd:4c
+         wlan0: STA 0c:9d:92:70:fd:4c RADIUS: starting accounting session 97DB26400B1D3921
+         wlan0: AP-STA-DISCONNECTED 0c:9d:92:70:fd:4c
+         wlan0: STA 0c:9d:92:70:fd:4c IEEE 802.11: authenticated
+         wlan0: STA 0c:9d:92:70:fd:4c IEEE 802.11: associated (aid 1)
+         wlan0: AP-STA-CONNECTED 0c:9d:92:70:fd:4c
+         wlan0: STA 0c:9d:92:70:fd:4c RADIUS: starting accounting session AEBCF08534CAE0B6
+         wlan0: AP-STA-DISCONNECTED 0c:9d:92:70:fd:4c
+         wlan0: interface state ENABLED->DISABLED
+         wlan0: AP-DISABLED
+         wlan0: CTRL-EVENT-TERMINATING
+         nl80211: deinit ifname=wlx1c872cc7c71d disabled_11b_rates=0
+
+run:
+  steps:
+    - "On the target device execute the following command:"
+    - "$ sudo hostapd_cli disable"