dt-bindings: display: msm: sm8450-mdss: Fix DSI compatible

The DSI compatible changed between patchset revisions, but that wasn't
reflected in the bindings. Fix it.

Fixes: 0eda3c6cb1c5 ("dt-bindings: display/msm: add support for the display on SM8450")
Signed-off-by: Neil Armstrong <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Patchwork: https://patchwork.freedesktop.org/patch/528589/
Link: https://lore.kernel.org/r/20[e-mail]
Signed-off-by: Dmitry Baryshkov <[e-mail]>

Documentation/devicetree/bindings/display/msm/qcom,sm8450-mdss.yaml

···
     type: object
     properties:
       compatible:
-        const: qcom,dsi-phy-5nm-8450
+        const: qcom,sm8450-dsi-phy-5nm
 
 required:
   - compatible
···
         };
 
         dsi0_phy: phy@ae94400 {
-            compatible = "qcom,dsi-phy-5nm-8450";
+            compatible = "qcom,sm8450-dsi-phy-5nm";
             reg = <0x0ae94400 0x200>,
                   <0x0ae94600 0x280>,
                   <0x0ae94900 0x260>;
···
         };
 
         dsi1_phy: phy@ae96400 {
-            compatible = "qcom,dsi-phy-5nm-8450";
+            compatible = "qcom,sm8450-dsi-phy-5nm";
             reg = <0x0ae96400 0x200>,
                   <0x0ae96600 0x280>,
                   <0x0ae96900 0x260>;