package/python-daemon: select python-lockfile

python-lockfile is needed for runtime. Without it, importing python-daemon
results in an import error.

Signed-off-by: Adam Duskett <aduskett@greenlots.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-daemon/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_PYTHON_DAEMON
 	bool "python-daemon"
 	select BR2_PACKAGE_PYTHON_DOCUTILS # runtime
+	select BR2_PACKAGE_PYTHON_LOCKFILE # runtime
 	help
 	  Library to implement a well-behaved Unix daemon process.