move clock_control.h to drivers/clock_control.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Add a new clock control driver for NXP Kinetis SoCs that have the
Peripheral Clock Controller module (PCC).
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
