dt-bindings: trivial-devices: Add ti,tps546b24

Describe TPS546B24 DC-DC converter which is very similar to tps546d24
version. The difference is that B version handles up to 20A. D version up
to 40A.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/c79f69d0d37e7eb61f93f5dea69148b7756a3ee5.1740056021.git.michal.simek@amd.com


Signed-off-by: Rob Herring (Arm) <robh@kernel.org>