The field "owner" is set by the core.
Thus delete an unneeded initialisation.

Generated by scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>