ClearSilver View: fix pkconfig file name to Cutelyst2Qt5ViewClearSilver.pc
ClearSilver View: fix pkconfig file name to Cutelyst2Qt5ViewClearSilver.pc

As all the other pkgconfig files are named Cutelyst2Qt5... I think,
only the 2 was missing here.

buschmann23/cutelyst,cutelyst/cutelyst,buschmann23/cutelyst,buschmann23/cutelyst,cutelyst/cutelyst,cutelyst/cutelyst