dt-bindings: clock: Add RaspberryPi RP1 clock bindings

dt-bindings: clock: Add RaspberryPi RP1 clock bindings

Add device tree bindings for the clock generator found in RP1 multi
function device, and relative entries in MAINTAINERS file.

Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20250529135052.28398-1-andrea.porta@suse.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>