[aemu] Add missing includes that break clang canary

Bug: 354026638
Change-Id: I31a61cde590d081ecad420fea79ca79902eaf485
diff --git a/android-emu/aemu/base/Optional.h b/android-emu/aemu/base/Optional.h
index 802a793..83f071a 100644
--- a/android-emu/aemu/base/Optional.h
+++ b/android-emu/aemu/base/Optional.h
@@ -20,6 +20,7 @@
 
 #include <cassert>
 #include <initializer_list>
+#include <new>
 #include <type_traits>
 #include <utility>