syslink: corrected checkpatch warnings in ipc modules

Corrected the checkpatch warnings in ipc modules. Warnings related to
the volatile keyword still persist in gate_remote.c, messageq_transportshm.c
and listmp.h
Signed-off-by: Suman Anna <s-anna@ti.com>

drivers/dsp/syslink/multicore_ipc/heapbuf.c

@@ -69,7 +69,7 @@ struct heapbuf_proc_attrs {
 struct heapbuf_module_object {
 	struct list_head obj_list; /* List holding created objects */
 	void *nshandle;
-	struct mutex*list_lock; /* lock for protecting obj_list */
+	struct mutex *list_lock; /* lock for protecting obj_list */
 	struct heap_config cfg;
 	struct heap_config defaultcfg; /* Default config values */
 	struct heapbuf_params default_inst_params; /* Default instance

drivers/dsp/syslink/multicore_ipc/ipc_drv.c

@@ -118,7 +118,7 @@ exit:
 	return retval;
 }
 
-struct file_operations ipc_fops = {
+const struct file_operations ipc_fops = {
 open: ipc_open,
 release : ipc_release,
 ioctl : ipc_ioctl,