[kde-frameworks/networkmanager-qt] Renamed from 'libnm-qt'

Package-Manager: portage-2.2.15
[kde-plasma/plasma-nm] Update dependency (libnm-qt → networkmanager-qt)

Package-Manager: portage-2.2.15
[sets] Rename 'kde-frameworks/libnm-qt' to 'kde-frameworks/networkmanager-qt'
[Documentation] Rename 'kde-frameworks/libnm-qt' to 'kde-frameworks/networkmanager-qt'