This patch provides the needed infrastructure to support calling hw_free()
at the DAI level. This is for example required to free resources allocated
in hw_params() callback.

The modification of __rsnd_mod_add_hw_params does not have any side
effects because rsnd_mod_ops::hw_params callback is not used by anyone
until now.
Signed-off-by: NTimo Wischer <twischer@de.adit-jv.com>
Signed-off-by: NJiada Wang <jiada_wang@mentor.com>
Link: https://lore.kernel.org/r/20190722072403.11008-2-jiada_wang@mentor.comSigned-off-by: NMark Brown <broonie@kernel.org>