add missing SIP module for PyQt5

This fixes the following runtime error when importing PyQt5 in python:

from PyQt5.QtCore import *
ModuleNotFoundError: No module named 'PyQt5.sip'

The problem was likely triggered by the atomic upgrade from 5.7 to
5.15 in b36ce7e. This commit is part of the 2022-2024 LTS.

Signed-off-by: Ralf Dragon <hypnotoad@lindra.de>
Tested-by: Andreas Naumann <anaumann@ultratronik.de>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/python-pyqt5/Config.in

@@ -5,6 +5,7 @@ config BR2_PACKAGE_PYTHON_PYQT5
 	bool "python-pyqt5"
 	depends on BR2_PACKAGE_QT5
 	select BR2_PACKAGE_PYTHON_SIP
+	select BR2_PACKAGE_PYTHON_PYQT5_SIP # runtime
 	select BR2_PACKAGE_QT5BASE_GUI
 	help
 	  Python bindings for Qt 5