python external modules: reorder menu entry

Reorder the external python modules menu entry so that it belongs under
python(2) and not under python3 to avoid confusion.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Config.in

@@ -344,7 +344,6 @@ endmenu
 endif
 source "package/php/Config.in"
 source "package/python/Config.in"
-source "package/python3/Config.in"
 if BR2_PACKAGE_PYTHON
 menu "external python modules"
 source "package/python-bottle/Config.in"
@@ -362,6 +361,7 @@ source "package/python-setuptools/Config.in"
 source "package/python-thrift/Config.in"
 endmenu
 endif
+source "package/python3/Config.in"
 source "package/ruby/Config.in"
 source "package/tcl/Config.in"
 if BR2_PACKAGE_TCL