Renamed User role name to ReadOnly

As per redfish specification (DSP0266), there are
set of predefined privilege roles. In OpenBMC code
has "User" as role name instead of "ReadOnly".
So corrected the same. Updated Redfish.md accordingly.

Spec says:
Role Name = "ReadOnly"
▪ AssignedPrivileges = Login, ConfigureSelf

Tested:
 - Role collection shows new role.
 - GET on /redfish/v1/AccountService/Roles/ReadOnly
   URI shows correct AssignedPrivileges.
 - Ran negative test with /redfish/v1/AccountService/Roles/User
   and observed error(404 - Not Found).
 - Ran Redfish validator and no new issues observed.

Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com>
Change-Id: I7b0132c628fb4950b6ec095269cd1a12e92aea9a

1 files changed, 2 insertions, 2 deletions

diff --git a/redfish-core/lib/account_service.hpp b/redfish-core/lib/account_service.hpp
index a183f6867b..7f34949fae 100644
--- a/redfish-core/lib/account_service.hpp
+++ b/redfish-core/lib/account_service.hpp
@@ -84,7 +84,7 @@ inline std::string getRoleIdFromPrivilege(std::string_view role)
     }
     else if (role == "priv-user")
     {
-        return "User";
+        return "ReadOnly";
     }
     else if (role == "priv-operator")
     {
@@ -102,7 +102,7 @@ inline std::string getPrivilegeFromRoleId(std::string_view role)
     {
         return "priv-callback";
     }
-    else if (role == "User")
+    else if (role == "ReadOnly")
     {
         return "priv-user";
     }