media: i2c: ov01a10: Optimize setting h/vflip values

media: i2c: ov01a10: Optimize setting h/vflip values

Since ov01a10_global_setting[] sets the initial format1 register value,
there is no need to do a read-write-modify when setting the flip controls.

Only write format1 when setting the flip-controls and remove the now
unnecessary format1 register init from ov01a10_global_setting[].

Signed-off-by: Hans de Goede <hansg@kernel.org>
Tested-by: Mehdi Djait <mehdi.djait@linux.intel.com> # Dell XPS 9315
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>