Minor fix to ARM codegen. Missed an error in the last commit.
Minor fix to ARM codegen. Missed an error in the last commit.


Former-commit-id: e8bc8278c30eefd7bbfe6ea612a6ef780853c744
Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide