Work/combine qif config module
The QIF configuration module was the only one still using old logic. This caused the validity of metadata to fail, reported as
Located plugin "/usr/lib64/qt5/plugins/kmymoney/kcm_qif.so" Validity false
This change fixes it and the validity is now reported as
Located plugin "/usr/lib64/qt5/plugins/kmymoney/kcm_qif.so" Validity true
Also, the usage of ServiceTypes= assignment is deprecated and fixed.