dt-bindings: clock: add rk3588 clock definitions

Add clock ID defines for rk3588.

Compared to the downstream bindings written by Elaine, this uses
continous gapless clock IDs starting at 0. Thus all numbers are
different between downstream and upstream, but I kept exactly the
same names.
Co-Developed-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20221018151407.63395-2-sebastian.reichel@collabora.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>