Synchronize submodules with LLVM at llvm/llvm-project@50302feb1d2c

Updates LLVM dependencies to match
[50302feb1d2c](https://github.com/llvm/llvm-project/commit/50302feb1d2c).
- TensorFlow to
[951452b6150e](https://github.com/tensorflow/tensorflow/commit/951452b6150e)
- MLIR-HLO to
[1b6e71edd1df](https://github.com/tensorflow/mlir-hlo/commit/${MLIR_HLO_SHA?})

`./scripts/git/update_to_llvm_syncpoint.py`

Automated submodule bump from .github/workflows/update_llvm_dependent_submodules.yml

PiperOrigin-RevId: 385656877

bindings/python/iree/runtime/function.py

diff --git a/bindings/python/iree/runtime/function.py b/bindings/python/iree/runtime/function.py
index 57537e7..36a5280 100644
--- a/bindings/python/iree/runtime/function.py
+++ b/bindings/python/iree/runtime/function.py
@@ -338,6 +338,7 @@
     "i32": np.int32,
     "i64": np.int64,
     "f64": np.float64,
+    "i16": np.int16,
     "i1": np.bool_,
 }