Fix casing on OpenBMC

f041387d5912db27e0317805e5c341c9c472887a didn't quite fix the issue due
to testing problems, which luckily CI caught.  This actually fixes it.

Tested: redfish service validator passes.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ieac721477b3e78165559f857c0683d0520b7fcc2
diff --git a/scripts/update_schemas.py b/scripts/update_schemas.py
index 1586a11..f93082c 100755
--- a/scripts/update_schemas.py
+++ b/scripts/update_schemas.py
@@ -345,7 +345,7 @@
 
     metadata_index.write(
         '    <edmx:Reference Uri="'
-        '/redfish/v1/schema/OpenbmcAccountService_v1.xml">\n'
+        '/redfish/v1/schema/OpenBMCAccountService_v1.xml">\n'
     )
     metadata_index.write(
         '        <edmx:Include Namespace="OemAccountService"/>\n'