libarchive: Fix install target

This commit replaces the command with a more generic one.

Signed-off-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>

libs/libarchive/Makefile

@@ -46,7 +46,7 @@ endef
 
 define Package/libarchive/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libarchive.so.* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/*.so.* $(1)/usr/lib/
 endef
 
 $(eval $(call BuildPackage,libarchive))