dt-bindings: i2c: st,stm32-i2c: add entry for stm32mp13

Add the new compatible for the stm32mp13.
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml

@@ -17,6 +17,7 @@ allOf:
           contains:
             enum:
               - st,stm32f7-i2c
+              - st,stm32mp13-i2c
               - st,stm32mp15-i2c
     then:
       properties:
@@ -45,6 +46,7 @@ properties:
     enum:
       - st,stm32f4-i2c
       - st,stm32f7-i2c
+      - st,stm32mp13-i2c
       - st,stm32mp15-i2c
 
   reg: