dt-bindings: leds: sgm3140: Document ocp8110 compatible

Add devicetree binding for Orient Chip OCP8110 charge pump used for camera flash LEDs.

---
This patch was originally submitted as part of a series [1]. But only 1/3 and 3/3 made it into torvalds/linux.git
So this is a resubmisson to add the missing documentation.

[1]: https://lore.kernel.org/all/[email protected]/

 Documentation/devicetree/bindings/leds/leds-sgm3140.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

index f68259619488..1c345cf16d08 100644
@@ -18,7 +18,9 @@ description: |
 
 properties:
   compatible:
-    const: sgmicro,sgm3140
+    enum:
+      - ocs,ocp8110
+      - sgmicro,sgm3140
 
   enable-gpios:
     maxItems: 1

2.35.1