drm: panel: nt36672a: Removed extra whitespace.

Removed extra whitespace before dev_err_probe() according to coding style.
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916073706.9004-1-caihuoqing@baidu.com