Move to 2019.4

Make changes to update_schemas.py needed for the move and run
update_schemas.py.

To see an overview of 2019.4 see
https://www.dmtf.org/sites/default/files/Redfish_Release_2019.4_Overview.pdf

Tested: Built bmcweb, loaded on a Witherspoon, and ran
        the validator. No errors.

See new schemas:
 curl -k https://${bmc}/redfish/v1/JsonSchemas/VCATEntry
{
    "@odata.context": "/redfish/v1/$metadata#JsonSchemaFile.JsonSchemaFile",
    "@odata.id": "/redfish/v1/JsonSchemas/VCATEntry",
    "@odata.type": "#JsonSchemaFile.v1_0_2.JsonSchemaFile",
    "Name": "VCATEntry Schema File",
    "Schema": "#VCATEntry.VCATEntry",

Change-Id: I5ae6e3c655e44c82c4457515555bdb934dfb7763
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/static/redfish/v1/JsonSchemas/Drive/Drive.json b/static/redfish/v1/JsonSchemas/Drive/Drive.json
index 7ff65b5..7771d88 100644
--- a/static/redfish/v1/JsonSchemas/Drive/Drive.json
+++ b/static/redfish/v1/JsonSchemas/Drive/Drive.json
@@ -1,5 +1,5 @@
 {
-    "$id": "http://redfish.dmtf.org/schemas/v1/Drive.v1_8_0.json",
+    "$id": "http://redfish.dmtf.org/schemas/v1/Drive.v1_9_0.json",
     "$ref": "#/definitions/Drive",
     "$schema": "http://redfish.dmtf.org/schemas/v1/redfish-schema-v1.json",
     "copyright": "Copyright 2014-2019 DMTF. For the full DMTF copyright policy, see http://www.dmtf.org/about/policies/copyright",
@@ -263,6 +263,16 @@
                         "null"
                     ]
                 },
+                "Multipath": {
+                    "description": "An indication of whether the drive is accessible from multiple paths.",
+                    "longDescription": "This property shall indicate whether the drive is accessible by an initiator from multiple paths allowing for failover capabilities upon a path failure.",
+                    "readonly": true,
+                    "type": [
+                        "boolean",
+                        "null"
+                    ],
+                    "versionAdded": "v1_9_0"
+                },
                 "Name": {
                     "$ref": "http://redfish.dmtf.org/schemas/v1/Resource.json#/definitions/Name",
                     "readonly": true
@@ -730,6 +740,6 @@
         }
     },
     "owningEntity": "DMTF",
-    "release": "2019.3",
-    "title": "#Drive.v1_8_0.Drive"
+    "release": "2019.4",
+    "title": "#Drive.v1_9_0.Drive"
 }
\ No newline at end of file