IPC4: Helper: Avoid warning about unused in ipc4_get_drv()

This change avoids warning/error:

sof/src/ipc/ipc4/helper.c:945:31: error: unused variable
'sof_uuid' [-Werror,-Wunused-variable]

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>

Author: singalsu

src/ipc/ipc4/helper.c

@@ -949,6 +949,8 @@ __cold static const struct comp_driver *ipc4_get_drv(const void *uuid)
 	struct comp_driver_info *info;
 	uint32_t flags;
 
+	(void)sof_uuid; /* Avoid possible warning of unused */
+
 	assert_can_be_cold();
 
 	irq_local_disable(flags);