dt-bindings: arm: qcom: Add Samsung Galaxy Express

Add a compatible for Samsung Galaxy Express SGH-I437.
Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230607050025.86636-2-guptarud@gmail.com

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -198,6 +198,7 @@ properties:
       - items:
           - enum:
               - qcom,msm8960-cdp
+              - samsung,expressatt
           - const: qcom,msm8960
 
       - items: