Fix RestorePolicy map

Before this code looked like:

{"xyz.openbmc_project.Control.Power.RestorePolicy.Policy.Restore",
"LastState"},
and that matches the PDI:
https://github.com/openbmc/phosphor-dbus-interfaces/blob/d1484a1499bc241316853934e6e8b735166deee2/yaml/xyz/openbmc_project/Control/Power/RestorePolicy.interface.yaml#L33

https://gerrit.openbmc.org/c/openbmc/bmcweb/+/64334/2/redfish-core/lib/systems.hpp#1350
changed this to RestorePolicy.Policy.AlwaysRestore, I think just a copy
mistake.

Pointed out by Patrick Rudolph.

Tested: None. Searching the enum now matches PDI and what was there
before.

Change-Id: I90e41d352dd1d1de3e465b4f2d5c9f78e0de5b3b
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/redfish-core/lib/systems.hpp b/redfish-core/lib/systems.hpp
index 54dbd70..188ff32 100644
--- a/redfish-core/lib/systems.hpp
+++ b/redfish-core/lib/systems.hpp
@@ -1357,7 +1357,7 @@
         return computer_system::PowerRestorePolicyTypes::AlwaysOff;
     }
     if (value ==
-        "xyz.openbmc_project.Control.Power.RestorePolicy.Policy.AlwaysRestore")
+        "xyz.openbmc_project.Control.Power.RestorePolicy.Policy.Restore")
     {
         return computer_system::PowerRestorePolicyTypes::LastState;
     }