dt-bindings: Move Mediatek clock controllers to "clock" directory

dt-bindings: Move Mediatek clock controllers to "clock" directory

The "arm" binding directory is for architecture specific and top-level
board bindings. Move all the MediaTek bindings implementing clock
providers from "arm/mediatek/" to "clock/" binding directories.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240807-dt-mediatek-clk-v1-2-e8d568abfd48@kernel.org
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>