dt-bindings: cache: qcom,llcc: Fix SM8550 description

SM8550 (LLCCv4.1) has 4 register regions, this was not described
between its addition and the restructurization that happened in
the commit referenced in the fixes tag.

Fix it.

Fixes: 43aa006 ("dt-bindings: arm: msm: Fix register regions used for LLCC banks")
Signed-off-by: Konrad Dybcio <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: Bjorn Andersson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: konradybcio

Documentation/devicetree/bindings/cache/qcom,llcc.yaml

@@ -129,6 +129,7 @@ allOf:
               - qcom,sm8250-llcc
               - qcom,sm8350-llcc
               - qcom,sm8450-llcc
+              - qcom,sm8550-llcc
     then:
       properties:
         reg: