[configs] set touchscreen via QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS

Setting ts via LIPSTICK_OPTIONS (-plugin arg) results in ts handler
being created twice and duplicating touch events throughout, which
as a side effect causes frozen homescreen issue.

First ts handler is created via QPA plugin doing autodetection.
Autodetect is not 100% reliable, so we override it here.
We then also remove -plugin option from lipstick options