VOL-3853:Use strings to convey more info about errors from DM to DM User

Change-Id: I41ce424b3143ed873ce7b6b6bf2a5e826c677f69
diff --git a/protos/dmi/sw_image.proto b/protos/dmi/sw_image.proto
index 8013c8b..08d6327 100644
--- a/protos/dmi/sw_image.proto
+++ b/protos/dmi/sw_image.proto
@@ -57,4 +57,5 @@
     ImageState state = 3;

     // description contains more information about the current state of the procedure and is device dependant

     string description = 4;

+    string reason_detail = 5;

 }