Revert "sdm: Allow Skip Validate after Idle Power Collapse"

This reverts commit b199d3e31501125d6d0b43d9070ed32a6cbc6751.

Change-Id: I6841f0c944ae8ad8922f525996a9bbb6097e4eb3
CRs-Fixed: 2541322
diff --git a/sdm/libs/hwc2/hwc_display.cpp b/sdm/libs/hwc2/hwc_display.cpp
index 865afb9..269e0fe 100644
--- a/sdm/libs/hwc2/hwc_display.cpp
+++ b/sdm/libs/hwc2/hwc_display.cpp
@@ -1250,7 +1250,8 @@
       validated_ = false;
       break;
     }
-    case kThermalEvent: {
+    case kThermalEvent:
+    case kIdlePowerCollapse: {
       SEQUENCE_WAIT_SCOPE_LOCK(HWCSession::locker_[id_]);
       validated_ = false;
     } break;
@@ -1264,8 +1265,6 @@
               id_);
       }
     } break;
-    case kIdlePowerCollapse:
-      break;
     default:
       DLOGW("Unknown event: %d", event);
       break;