package/python-jinja2: fix runtime python modules dependencies

- add python unicodedata runtime dependency, fixes:
  File "usr/lib/python3.8/site-packages/jinja2/lexer.py", line 46, in <module>
  ModuleNotFoundError: No module named 'unicodedata'

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-jinja2/Config.in

@@ -1,6 +1,8 @@
 config BR2_PACKAGE_PYTHON_JINJA2
 	bool "python-jinja2"
 	select BR2_PACKAGE_PYTHON_MARKUPSAFE # runtime
+	select BR2_PACKAGE_PYTHON_UNICODEDATA if BR2_PACKAGE_PYTHON
+	select BR2_PACKAGE_PYTHON3_UNICODEDATA if BR2_PACKAGE_PYTHON3
 	help
 	  Jinja2 is a template engine written in pure Python. It
 	  provides a Django inspired non-XML syntax but supports