schema: Add EntityId and EntityInstance to JSON schema.

Support for EntityId and EntityInstance has been added to other
components (e.g. phosphor-host-ipmid's dbus-sdr) a while ago.
This change adds these keywords to the JSON schema.

Signed-off-by: Oskar Senft <osk@google.com>
Change-Id: If24e943814c3190ebcd7cb658af5f6fe00517c26
diff --git a/schemas/legacy.json b/schemas/legacy.json
index 6fd6ba3..cb2a978 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -63,6 +63,12 @@
                 "DtsCritOffset": {
                     "$ref": "#/definitions/Types/DtsCritOffset"
                 },
+                "EntityId": {
+                    "$ref": "#/definitions/Types/EntityId"
+                },
+                "EntityInstance": {
+                    "$ref": "#/definitions/Types/EntityInstance"
+                },
                 "FaultIndex": {
                     "$ref": "#/definitions/Types/FaultIndex"
                 },
@@ -474,6 +480,12 @@
             "DtsCritOffset": {
                 "type": "number"
             },
+            "EntityId": {
+                "type": "number"
+            },
+            "EntityInstance": {
+                "type": "number"
+            },
             "FaultIndex": {
                 "type": "number"
             },
@@ -863,4 +875,3 @@
         }
     }
 }
-