ASoC: Intel: Skylake: Add support for Loadable modules

A module is loaded when the path consisting the module is opened.
The module binary(ies) is loaded from file system and cached in
kernel memory for future use. This is downloaded to DSP using DMA
and invoking Load module IPCs

This patch adds support for load/unload module IPCs, DMAing
modules and manging the modules

Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/skl-sst-ipc.h

@@ -108,6 +108,12 @@ int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc,
 int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc,
 		struct skl_ipc_bind_unbind_msg *msg);
 
+int skl_ipc_load_modules(struct sst_generic_ipc *ipc,
+				u8 module_cnt, void *data);
+
+int skl_ipc_unload_modules(struct sst_generic_ipc *ipc,
+				u8 module_cnt, void *data);
+
 int skl_ipc_set_dx(struct sst_generic_ipc *ipc,
 		u8 instance_id, u16 module_id, struct skl_ipc_dxstate_info *dx);