Fix the symlinks that submakefiles create so that they don't suck at life.

--- lib/Makefile.elf-lib
+++ lib/Makefile.elf-lib
@@ -49,3 +49,3 @@
 	@echo "	SYMLINK $(libdir)/$(ELF_IMAGE).so"
-	@$(LN_S) -f $(ELF_INSTALL_DIR)/$(ELF_SONAME) \
+	@$(LN_S) -f $(ELF_SONAME) \
 		$(DESTDIR)$(libdir)/$(ELF_IMAGE).so