manager: rate limit dbus errors

If there is a misconfiguration between sysfs and led-manager,
the manager will be very spammy about dbus errors at it tries
to update the sysfs value.  Rate limit this to once per hour
per LED.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I2896377ff64318159ca3963d09c2ab5bf7452862
diff --git a/manager/led-main.cpp b/manager/led-main.cpp
index f671d5d..7791747 100644
--- a/manager/led-main.cpp
+++ b/manager/led-main.cpp
@@ -66,7 +66,7 @@
     phosphor::led::LampTest lampTest(event, manager);
 
     // Clear leds triggered by lamp test in previous boot
-    phosphor::led::LampTest::clearLamps();
+    lampTest.clearLamps();
 
     groups.emplace_back(std::make_unique<phosphor::led::Group>(
         bus, LAMP_TEST_OBJECT, manager, serializePtr,