dt-bindings: extcon: usbc-tusb320: Add TUSB320L compatible string

Add a compatible string for TUSB320L.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

Documentation/devicetree/bindings/extcon/extcon-usbc-tusb320.yaml

@@ -11,7 +11,9 @@ maintainers:
 
 properties:
   compatible:
-    const: ti,tusb320
+    enum:
+      - ti,tusb320
+      - ti,tusb320l
 
   reg:
     maxItems: 1