Disable building STABLEHLO and specify USE_MATH_DEFINES for windows builds. (llvm#3805)

I'm trying to build python wheel for windows similar to as done for
linux in https://github.com/llvm/torch-mlir-release/ however turns out
the build process on windows is broken without the following fixes:

1. Building stablehlo for windows fails due to
openxla/stablehlo#1772 -- so disabling
stablehlo in `build_windows_ci.sh` that will be used for building the
python wheels.

2. Add `USE_MATH_DEFINES` to resolve
`torch-mlir\lib\Conversion\TorchOnnxToTorch\DefaultDomainGtoP.cpp(709):
error C2065: 'M_LOG10E': undeclared identifier`

Author: sahas3

CMakeLists.txt

@@ -71,6 +71,10 @@ macro(torch_mlir_enable_werror)
   endif()
 endmacro()
 
+if(MSVC)
+  add_definitions(-D_USE_MATH_DEFINES)
+endif()
+
 #-------------------------------------------------------------------------------
 # Configure out-of-tree vs in-tree build
 #-------------------------------------------------------------------------------

build_tools/python_deploy/build_windows_ci.sh

@@ -14,6 +14,7 @@ cmake -GNinja -Bbuild \
   -DLLVM_EXTERNAL_PROJECTS="torch-mlir" \
   -DLLVM_EXTERNAL_TORCH_MLIR_SOURCE_DIR="$PWD" \
   -DPython3_EXECUTABLE="$(which python)" \
+  -DTORCH_MLIR_ENABLE_STABLEHLO=OFF \
   $GITHUB_WORKSPACE/externals/llvm-project/llvm
 
 cmake --build build --config Release