Fix broken build on Mac
Fix broken build on Mac

On Mac the variable "scTargetDir" was not defined. This block of code
was behind "#ifdef Q_OS_MAC" so other platforms were not affected.

Added constants.h include for mac only to resolve the missing
global constant.

Change-Id: Ia8bef78d7c3015f283b202435d56d00187f3fb4f
Reviewed-by: Simo Fält <b598cfbc9cb80e3067479e5abd365cdf44c9b327@nokia.com>
Reviewed-by: Tim Jenssen <6a21f175c697b4129e1bafb6e9b52078bb1a6738@nokia.com>
Reviewed-by: Friedemann Kleint <1b9f2592239daaec4856ccc1cfb4d2d55b35fb71@nokia.com>

olear/qtifw,olear/qtifw,olear/qtifw,olear/qtifw