dt-bindings: Update Documentation/arm references

The Arm documentation has moved to Documentation/arch/arm; update
one devicetree reference to match.

Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: devicetree@vger.kernel.org
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2023-05-19 10:31:30 -06:00
commit f8c2566202