Use full qualified name in macros.

The ANDROID_SINGLETON_STATIC_INSTANCE is used in some files
out of the android namespace. If it does not use full qualified
names, users of this macro will need to use it inside the 'android'
namespace to avoid warnings from clang compiler.

Change-Id: Ie4d4ba2b57fdc72d0deb3b7c2326304a44a1300f