Allow cxx_mangling_aottest to build when PTX is disabled
Allow cxx_mangling_aottest to build when PTX is disabled


Former-commit-id: 6605c1276cd3a7e3697318077904490304a5a3a8
darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide