media: ds90ub9xx: switch three more drivers back to use struct i2c_driver::probe()

struct i2c_driver::probe_new() is about to go away. Since I converted
all drivers below drivers/media use struct i2c_driver::probe, three more
drivers were added in the following commits that use .probe_new():

	commit 6363db1c ("media: i2c: add DS90UB953 driver")
	commit c158d0d4 ("media: i2c: add DS90UB913 driver")
	commit afe267f2 ("media: i2c: add DS90UB960 driver")

Switch these driver to use the probe callback.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: use proper commit description style]