dt-bindings: clock: qcom,sm8450-camcc: Require required-opps on SM8750

Reverse the logic within "if:then:" when expecting "required-opps"
property to have negative list of only variants which do not require
these.  CAMCC on SM8650 does not need "required-opps" as explained in
the commit db30c1160c ("dt-bindings: clock: qcom: Drop required-opps
in required on SM8650 camcc").  Requirement on CAMCC on SM8475 is not
known.

Reverting the logic in "if:" part has two impacts:

1. Adds requirement of "required-opps" on CAMCC on SM8750 to match
   hardware expectation, because it needs minimum voltage levels of MMCX
   rail (already expressed in DTS).

2. Reduces the chances of forgetting to update constraints when adding
   new compatibles (like for SM8750).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260708-dt-bindings-camcc-required-opps-v1-2-ae0871774210@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml

@@ -70,12 +70,11 @@ allOf:
   - if:
       properties:
         compatible:
-          contains:
-            enum:
-              - qcom,kaanapali-cambistmclkcc
-              - qcom,kaanapali-camcc
-              - qcom,sm8450-camcc
-              - qcom,sm8550-camcc
+          not:
+            contains:
+              enum:
+                - qcom,sm8475-camcc
+                - qcom,sm8650-camcc
     then:
       required:
         - required-opps