android: Update for builtin_stubs.cpp move

This fixes the Android build after the move of builtin_stubs.cpp into
the builtin_compiler subdirectory. This patch is untested.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
1 file changed