Handle config path without slash
Handle config path without slash

If the parameter configuration file path does not contain a "/"
it used to assert as it could not find it's folder.

Use "." this case.

Signed-off-by: Kevin Rocard <bd9a896220d78c7807307c046053ff427b594938@intel.com>

mgaio/parameter-framework,krocard/parameter-framework,wzairix/parameter-framework,mgaio/parameter-framework,mgaio/parameter-framework,dbrageul/parameter-framework,miguelgaio/parameter-framework,Makohoek/parameter-framework,anwarMov/parameter-framework,zchokri/parameter-framework,Makohoek/parameter-framework,miguelgaio/parameter-framework,01org/parameter-framework,dbrageul/parameter-framework,soaresm/parameter-framework,krocard/parameter-framework,anwarMov/parameter-framework,anwarMov/parameter-framework,clero/parameter-framework,sdnnfv/parameter-framework,miguelgaio/parameter-framework,android-ia/hardware_intel_parameter-framework,zchokri/parameter-framework,android-ia/hardware_intel_parameter-framework,dawagner/parameter-framework,wzairix/parameter-framework,dawagner/parameter-framework,soaresm/parameter-framework,krocard/parameter-framework,01org/parameter-framework,wzairix/parameter-framework,dawagner/parameter-framework,clero/parameter-framework,01org/parameter-framework,zchokri/parameter-framework,soaresm/parameter-framework,Makohoek/parameter-framework,sdnnfv/parameter-framework,clero/parameter-framework,dbrageul/parameter-framework,sdnnfv/parameter-framework,android-ia/hardware_intel_parameter-framework