lib: move compat links from targetdirs to proper makefiles

@@ -30,8 +30,8 @@
 
 .KEEP_STATE:
 
 all:            $(DYNLIB) $(LIBLINKS)
 
-install:        all $(ROOTFS_DYNLIB)
+install:        all $(ROOTLIBS) $(ROOTCOMPATLINKS)
 
 include         $(SRC)/cmd/sgs/librtld/Makefile.targ