cad/yosys-ghdl-plugin: Fix plist

Reported by:	fallout
Approved by:	portmgr (blanket unbreak)

cad/yosys-ghdl-plugin/Makefile

@@ -13,7 +13,7 @@ BUILD_DEPENDS=	ghdl>0:cad/ghdl \
 		yosys>0:cad/yosys
 RUN_DEPENDS=	yosys>0:cad/yosys
 LIB_DEPENDS=	libffi.so:devel/libffi \
-		libghdl-4_0_0.so:cad/ghdl \
+		libghdl-4_1_0.so:cad/ghdl \
 		libtcmalloc.so:devel/google-perftools
 
 USES=		gmake readline tcl