Add phonon-vlc backend for FindMyDevice plugin (WIn32 port)

Summary: added a dependency that enables remote ring feature in KDE Connect Win32 port

Test Plan:

• Use Windows machine ***

apply patch
if installing KDE Connect on a fresh CraftRoot ->craft -i extragear/kdeconnect-kde
if already installed KDE Connect through craft-> craft --install-deps extragear/kdeconnect-kde
start CraftRoot/bin/kdeconnect-indicator.exe
Pair your android device with the Windows machine over KDE Connect's android app
Start Ring from the drop-down menu in upper right corner of the android app.

Expected : The Windows Machine rings
Before : It didn't
Now : It does

Reviewers: vonreth, albertvaka

Reviewed By: albertvaka

Subscribers: albertvaka, KDE Connect

Differential Revision: https://phabricator.kde.org/D20015