sdm: Allow skip validate after idle power collapse am: 5b0da005fb

Change-Id: I683a0715205a95943af0c5f9f04400ebb0ca36e7
diff --git a/sdm/libs/hwc2/hwc_display.cpp b/sdm/libs/hwc2/hwc_display.cpp
index 61415b6..1f267e0 100644
--- a/sdm/libs/hwc2/hwc_display.cpp
+++ b/sdm/libs/hwc2/hwc_display.cpp
@@ -1279,11 +1279,12 @@
       break;
     }
     case kThermalEvent:
-    case kIdlePowerCollapse:
     case kPanelDeadEvent: {
       SEQUENCE_WAIT_SCOPE_LOCK(HWCSession::locker_[type_]);
       validated_ = false;
     } break;
+    case kIdlePowerCollapse:
+      break;
     default:
       DLOGW("Unknown event: %d", event);
       break;