[bazel] Explicitly use output_to_bindir = 1 for genlinalg (#158669)

This is the default in recent versions of bazel, but old behavior is
still possible w/ `--incompatible_merge_genfiles_directory=false
--incompatible_skip_genfiles_symlink=false`.

Author: rupprecht

utils/bazel/llvm-project-overlay/mlir/linalggen.bzl

@@ -33,6 +33,7 @@ def genlinalg(name, linalggen, src, linalg_outs):
             srcs = [src],
             outs = [out],
             tools = [linalggen],
+            output_to_bindir = 1,
             cmd = (" ".join(base_args)),
         )