scsi: esas2r: esas2r_init: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Bradley Grove <bgrove@atto.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/esas2r/esas2r_init.c

@@ -1241,6 +1241,7 @@ static bool esas2r_format_init_msg(struct esas2r_adapter *a,
 			a->init_msg = ESAS2R_INIT_MSG_GET_INIT;
 			break;
 		}
+		/* fall through */
 
 	case ESAS2R_INIT_MSG_GET_INIT:
 		if (msg == ESAS2R_INIT_MSG_GET_INIT) {
@@ -1254,7 +1255,7 @@ static bool esas2r_format_init_msg(struct esas2r_adapter *a,
 				esas2r_hdebug("FAILED");
 			}
 		}
-	/* fall through */
+		/* fall through */
 
 	default:
 		rq->req_stat = RS_SUCCESS;