audio: volume: Align volume vector to cache line size

Some of the HIFI optimized versions of the volume processing callbacks
require the volume vector to be suitably aligned. Cache line size
should be good enough for all versions.

Signed-off-by: Jyri Sarha <jyri.sarha@linux.intel.com>

Author: Jyri Sarha

src/audio/volume/volume_ipc3.c

@@ -88,7 +88,7 @@ int volume_init(struct processing_module *mod)
 	 * malloc memory to store current volume 4 times to ensure the address
 	 * is 8-byte aligned for multi-way xtensa intrinsic operations.
 	 */
-	cd->vol = mod_alloc(mod, vol_size);
+	cd->vol = mod_alloc_align(mod, vol_size, CONFIG_DCACHE_LINE_SIZE);
 	if (!cd->vol) {
 		mod_free(mod, cd);
 		comp_err(dev, "Failed to allocate %zu", vol_size);

src/audio/volume/volume_ipc4.c

@@ -135,7 +135,7 @@ int volume_init(struct processing_module *mod)
 	 * malloc memory to store current volume 4 times to ensure the address
 	 * is 8-byte aligned for multi-way xtensa intrinsic operations.
 	 */
-	cd->vol = mod_alloc(mod, vol_size);
+	cd->vol = mod_alloc_align(mod, vol_size, CONFIG_DCACHE_LINE_SIZE);
 	if (!cd->vol) {
 		mod_free(mod, cd);
 		comp_err(dev, "Failed to allocate %d", vol_size);