dt-bindings: clock: tegra: Document Tegra132 compatible

The Tegra132 clock and reset controller is largely compatible with the
version found on Tegra124 but it does have slight differences in what
clocks it exposes, so a separate compatible string is needed.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Documentation/devicetree/bindings/clock/nvidia,tegra124-car.yaml

@@ -27,7 +27,9 @@ description: |
 
 properties:
   compatible:
-    const: nvidia,tegra124-car
+    enum:
+      - nvidia,tegra124-car
+      - nvidia,tegra132-car
 
   reg:
     maxItems: 1