The k210 U-Boot port has been using the clocks defined in the
devicetree to bring up the board's SRAM, but this violates the
dt-schema. As such, move the clocks to a dedicated node with
the same compatible string & document it.
Signed-off-by: NConor Dooley <conor.dooley@microchip.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Reviewed-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220705215213.1802496-5-mail@conchuod.ieSigned-off-by: NPalmer Dabbelt <palmer@rivosinc.com>