Add optional notifyThresholdChanged API

Bump thermal HAL to v3

Bug: 360486877
Flag: EXEMPT AIDL interface changes
Test: atest VtsHalThermalTargetTest
Change-Id: I3954301c11351153f2df1d111f7fe2439cc16aae
diff --git a/thermal/aidl/vts/VtsHalThermalTargetTest.cpp b/thermal/aidl/vts/VtsHalThermalTargetTest.cpp
index 7f33e2d..066e773 100644
--- a/thermal/aidl/vts/VtsHalThermalTargetTest.cpp
+++ b/thermal/aidl/vts/VtsHalThermalTargetTest.cpp
@@ -93,6 +93,10 @@
         return ndk::ScopedAStatus::ok();
     }
 
+    ndk::ScopedAStatus notifyThresholdChanged(const TemperatureThreshold&) {
+        return ndk::ScopedAStatus::ok();
+    }
+
     template <typename R, typename P>
     [[nodiscard]] bool waitForCallback(std::chrono::duration<R, P> duration) {
         std::unique_lock<std::mutex> lock(mMutex);