dt-bindings: tegra: pmc: Add Tegra264 compatible

The PMC found on Tegra264 is similar to the version in earlier chips but
some of the register offsets and bitfields differ, so add a specific
compatible string for this new generation.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250506133118.1011777-2-thierry.reding@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: thierryreding

Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml

@@ -16,6 +16,7 @@ properties:
       - nvidia,tegra186-pmc
       - nvidia,tegra194-pmc
       - nvidia,tegra234-pmc
+      - nvidia,tegra264-pmc
 
   reg:
     minItems: 4