media: dw9714: Fix powerup sequence

media: dw9714: Fix powerup sequence

We have experienced seen multiple I2C errors while doing stress test on
the module:

dw9714 i2c-PRP0001:01: dw9714_vcm_resume I2C failure: -5
dw9714 i2c-PRP0001:01: I2C write fail

Inspecting the powerup sequence we found that it does not match the
documentation at:
https://blog.arducam.com/downloads/DW9714A-DONGWOON(Autofocus_motor_manual).pdf

"""
(2) DW9714A requires waiting time of 12ms after power on. During this
waiting time, the offset calibration of internal amplifier is
operating for minimization of output offset current .
"""

This patch increases the powerup delay to follow the documentation.

Fixes: 9d00ccabfbb5 ("media: i2c: dw9714: Fix occasional probe errors")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Tested-by: Neil Sun <neil.sun@lcfuturecenter.com>
Reported-by: Naomi Huang <naomi.huang@lcfuturecenter.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>