emulators/i386-wine: Make the dependency on wine-mono generic

Instead of hard coding the actual version number use a generic
dependency on simply the port. This makes maintenance easier and
reduces the chance for mistakes.

This ports over commit dc73fd60
from the emulators/wine port:

PR:		257630

emulators/i386-wine/Makefile.amd64

@@ -41,7 +41,7 @@ GECKO_DESC=     Bundle Gecko MSI package for Wine
 MONO_DESC=      Bundle Mono MSI package for Wine
 
 GECKO_RUN_DEPENDS=	${DATADIR}/gecko/wine-gecko-2.47.1-x86.msi:emulators/wine-gecko
-MONO_RUN_DEPENDS=	${DATADIR}/mono/wine-mono-5.1.1-x86.msi:emulators/wine-mono
+MONO_RUN_DEPENDS=	wine-mono>0:emulators/wine-mono
 
 do-extract:
 	@${RM} -r ${WRKDIR}