AZX_DCAPS_PM_RUNTIME flag is added to indicate support for runtime PM.
azx_has_pm_runtime() is used to check if above is enabled and thus
forbid runtime PM calls if needed.
Signed-off-by: NSameer Pujar <spujar@nvidia.com>
Reviewed-by: NRavindra Lokhande <rlokhande@nvidia.com>
Reviewed-by: NMohan Kumar D <mkumard@nvidia.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>