Update hexagon_matmul to recent generator changes
Update hexagon_matmul to recent generator changes


Former-commit-id: 6acdac5f9318b26138fa619f76b1a8ffa28ecdd1 [formerly df315a5b086dd8e0c889ba476ade42543d4d1046]
Former-commit-id: 8a76001f98f685296e50ccdf4e109e62ea99c06d
darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide