This is required for udev to run which is common to many user-spaces.

It is my understanding that this is a requirement for automated
testing conducted by Iwamatsu-san.
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>