dt-bindings: clocks: atmel,at91sam9x5-sckc: add sama7d65

Add bindings for SAMA7D65's slow clock controller.

Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/b7a8a22a571f6fc2be56a25f26757f37fa8d2bb3.1733505542.git.Ryan.Wanner@microchip.com


Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>