When CONFIG_PM_DEVICE is enabled IPC Device may be during power transition
during a call to intel_adsp_ipc_send_message function.
Changed signatures of intel_adsp_ipc_send_message and its sync version
to return int and negative error codes on error.
On attempt to send IPC message during Device power transition
-ESHUTDOWN error code is returned, on busy state -EBUSY.
Updated all function references.
Signed-off-by: Andrey Borisovich <andrey.borisovich@intel.com>
23b3cae1b1