Replace 0 with false to clear
warning of assignment of 0/1 to bool variable.
Issue detected by coccinelle tool.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>