scsi: isci: remote_node_context: Fix one function header and demote a couple more

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/isci/remote_node_context.c:77: warning: Cannot understand  *
 drivers/scsi/isci/remote_node_context.c:167: warning: Cannot understand  *
 drivers/scsi/isci/remote_node_context.c:206: warning: Cannot understand  *

Link: https://lore.kernel.org/r/20210317091230.2912389-25-lee.jones@linaro.org
Cc: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/isci/remote_node_context.c

@@ -74,7 +74,7 @@ const char *rnc_state_name(enum scis_sds_remote_node_context_states state)
 #undef C
 
 /**
- *
+ * sci_remote_node_context_is_ready()
  * @sci_rnc: The state of the remote node context object to check.
  *
  * This method will return true if the remote node context is in a READY state
@@ -163,12 +163,7 @@ static void sci_remote_node_context_construct_buffer(struct sci_remote_node_cont
 	rnc->ssp.oaf_source_zone_group = 0;
 	rnc->ssp.oaf_more_compatibility_features = 0;
 }
-/**
- *
- * @sci_rnc:
- * @callback:
- * @callback_parameter:
- *
+/*
  * This method will setup the remote node context object so it will transition
  * to its ready state.  If the remote node context is already setup to
  * transition to its final state then this function does nothing. none
@@ -203,8 +198,6 @@ static void sci_remote_node_context_setup_to_destroy(
 }
 
 /**
- *
- *
  * This method just calls the user callback function and then resets the
  * callback.
  */