media: ov08x40: Move ov08x40_identify_module() function up

[ Upstream commit 7a39639e ]

Move the ov08x40_identify_module() function to above ov08x40_set_stream()
this is a preparation patch for adding a missing ov08x40_identify_module()
call to ov08x40_set_stream().

No functional changes, just moving code around.

Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Stable-dep-of: ebf185ef ("media: ov08x40: Add missing ov08x40_identify_module() call on stream-start")
Signed-off-by: Sasha Levin <sashal@kernel.org>