media: i2c: og01a1b: Add support of 8-bit media bus format

media: i2c: og01a1b: Add support of 8-bit media bus format

Omnivision OG01A1B monochrome image sensor supports 8-bit and 10-bit
output formats, add support of 8-bit Y8 format to the driver.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
[Sakari Ailus: Fix error handling for enable_streams callback.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>