Convert the J-Core PIT Timer binding to DT schema format. It's a
straight-forward conversion.
Since the 'reg' entries are based on number of cores, we can't put
constraints on it.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250506022253.2587999-1-robh@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>