[adb] Add dhcp server start for ADB mode. Contributes: JB#30264

Also start the dhcp server so we have network connectivity too,
in case this would be needed in combination with the adb mode.
Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>

config/run/udhcpd-adb-mode.ini

+[info]
+name = udhcpd.service
+mode = adb_mode
+systemd = 1
+post = 1

rpm/usb-moded.spec

@@ -401,6 +401,7 @@ systemctl daemon-reload || :
 %{_sysconfdir}/usb-moded/dyn-modes/adb_mode.ini
 %{_sysconfdir}/usb-moded/run/adb-startserver.ini
 %{_sysconfdir}/usb-moded/run/adb-prepare.ini
+%{_sysconfdir}/usb-moded/run/udhcpd-adb-mode.ini
 
 %files mtp-mode-android
 %defattr(-,root,root,-)