Fix provision flash

Author: mkardous-silabs

examples/platform/silabs/provision/ProvisionStorageFlash.cpp

@@ -726,12 +726,16 @@ CHIP_ERROR Storage::SetOtaTlvEncryptionKey(const ByteSpan & value)
 }
 #endif // SL_MATTER_ENABLE_OTA_ENCRYPTION
 
-#ifdef SL_MATTER_TEST_EVENT_TRIGGER_ENABLED
 CHIP_ERROR Storage::GetTestEventTriggerKey(MutableByteSpan & keySpan)
 {
+#ifdef SL_MATTER_TEST_EVENT_TRIGGER_ENABLED
+    // TODO: Implement Getter
+    // Adding the same return twice to have the function structure
+    return CHIP_ERROR_NOT_IMPLEMENTED;
+#else
     return CHIP_ERROR_NOT_IMPLEMENTED;
-}
 #endif // SL_MATTER_TEST_EVENT_TRIGGER_ENABLED
+}
 
 } // namespace Provision