dt-bindings: msm: qcom, mdss: Include ommited fam-b compatible

During conversion 28nm-hpm-fam-b compat got lost, add it.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Fixes: f7d46c5e ("dt-bindings: display/msm: split qcom, mdss bindings")
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/575290/
Link: https://lore.kernel.org/r/20240121194221.13513-4-a39.skl@gmail.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -127,6 +127,7 @@ patternProperties:
           - qcom,dsi-phy-20nm
           - qcom,dsi-phy-28nm-8226
           - qcom,dsi-phy-28nm-hpm
+          - qcom,dsi-phy-28nm-hpm-fam-b
           - qcom,dsi-phy-28nm-lp
           - qcom,hdmi-phy-8084
           - qcom,hdmi-phy-8660