add missing passes in nv pipeline

Author: tkarna

Diff for: src/jit/mlir.cpp

@@ -790,10 +790,15 @@ static const std::string gpu_pipeline =
     "func.func(insert-gpu-copy),"
     "drop-regions,"
     "canonicalize,"
+    "func.func(lower-affine),"
     "gpu-kernel-outlining,"
+    "canonicalize,"
+    "cse,"
     "gpu.module(strip-debuginfo,convert-gpu-to-nvvm),"
     "nvvm-attach-target,"
     "func.func(gpu-async-region),"
+    "expand-strided-metadata,"
+    "lower-affine,"
     "gpu-to-llvm,"
     "gpu-module-to-binary{format=fatbin},"
     "convert-func-to-llvm,"