driver-core: fix platform_no_drv_owner.cocci warnings

Remove .owner field initialization as the core will do it.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

CC: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>