drm/tilcdc: panel: fix platform_no_drv_owner.cocci warnings

./drivers/gpu/drm/tilcdc/tilcdc_panel.c:402:3-8: No need to set .owner
here. The core will do it.

Remove .owner field if calls are used which set it automatically

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jyri Sarha <jyri.sarha@iki.fi>
Link: https://patchwork.freedesktop.org/patch/msgid/1614762267-98454-1-git-send-email-yang.lee@linux.alibaba.com