add Config.in.lib for libdevmapper

package/Config.in

@@ -260,6 +260,7 @@ source "package/libpcap/Config.in"
 source "package/libpcap/Config.in.lib"
 source "package/libpri/Config.in"
 source "package/libpri/Config.in.lib"
+source "package/lvm/Config.in.lib"
 source "package/pango/Config.in"
 source "package/pcre/Config.in"
 source "package/pcre/Config.in.lib"