#gpowerd Add state name to state change log.

The log message now includes the name of the state (e.g., "system_0_PowerState") that has changed, making the log more informative.

PiperOrigin-RevId: 839387662
Change-Id: I84028e9acabc6df630e13dd6ff270d5b44cb9be0
diff --git a/bmc/state_monitor_bmc.cc b/bmc/state_monitor_bmc.cc
index dc10784..18d9a2d 100644
--- a/bmc/state_monitor_bmc.cc
+++ b/bmc/state_monitor_bmc.cc
@@ -232,8 +232,8 @@
           absl::string_view temp_ps_str =
               PowerStateSpecifier_Name(temp_power_state);
           LOG(INFO) << absl::StrFormat(
-              "state changed from: %d (%s) to: %d (%s)", last_ps, last_ps_str,
-              temp_power_state, temp_ps_str);
+              "%s changed from: %d (%s) to: %d (%s)", state_name,
+              last_ps, last_ps_str, temp_power_state, temp_ps_str);
 
           // add new state power state to a new system proto
           safepower_agent_proto::SystemState new_state;