leds: sgm3140: Add ocs,ocp8110 compatible

Orient-Chip's ocp8110 has the same pin configuration as the sgm3140.
The data sheet can be found at:
https://cdn.datasheetspdf.com/pdf-down/O/C/P/OCP8110-OrientChip.pdf



Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Pavel Machek <pavel@ucw.cz>