update OVH vendor entry

- there is identity v3 support
- there are a lot more regions available

Change-Id: I75c2cca1812cd07817a3e4c6007fa8c18ab737ec

doc/source/user/config/vendor-support.rst

@@ -217,7 +217,7 @@ us-slc         Salt Lake City, UT
 OVH
 ---
 
-https://auth.cloud.ovh.net/v2.0
+https://auth.cloud.ovh.net/v3
 
 ============== ================
 Region Name    Location

openstack/config/vendors/ovh.json

@@ -5,9 +5,21 @@
       "auth_url": "https://auth.cloud.ovh.net/"
     },
     "regions": [
+      "BHS",
       "BHS1",
+      "BHS3",
+      "DE",
+      "DE1",
+      "GRA",
       "GRA1",
-      "SBG1"
+      "GRA5",
+      "SBG",
+      "SBG1",
+      "SBG5",
+      "UK",
+      "UK1",
+      "WAW",
+      "WAW1"
     ],
     "identity_api_version": "3",
     "floating_ip_source": "None"