Update eps.md about Python wheels for MIGraphX and ROCm (#22423)

### Description
Update eps.md about Python wheels for MIGraphX and ROCm



### Motivation and Context
There was no instructions to show how to build python wheels for
MIGraphX and ROCm backends. It is neccesary to add these command
examples.

docs/build/eps.md

@@ -548,11 +548,19 @@ See more information on the MIGraphX Execution Provider [here](../execution-prov
 #### Linux
 
 ```bash
-./build.sh --config <Release|Debug|RelWithDebInfo> --use_migraphx --migraphx_home <path to MIGraphX home>
+./build.sh --config <Release|Debug|RelWithDebInfo> --parallel --use_migraphx --migraphx_home <path to MIGraphX home>
 ```
 
 Dockerfile instructions are available [here](https://github.com/microsoft/onnxruntime/blob/main/dockerfiles#migraphx).
 
+#### Build Phython Wheel
+
+`./build.sh --config Release --build --build_wheel --parallel --use_migraphx --migraphx_home /opt/rocm`
+
+Then the python wheels(*.whl) could be found at ```./build/Linux/Release/dist```.
+
+---
+
 ## AMD ROCm
 
 See more information on the ROCm Execution Provider [here](../execution-providers/ROCm-ExecutionProvider.md).
@@ -569,11 +577,19 @@ See more information on the ROCm Execution Provider [here](../execution-provider
 #### Linux
 
 ```bash
-./build.sh --config <Release|Debug|RelWithDebInfo> --use_rocm --rocm_home <path to ROCm home>
+./build.sh --config <Release|Debug|RelWithDebInfo> --parallel --use_rocm --rocm_home <path to ROCm home>
 ```
 
 Dockerfile instructions are available [here](https://github.com/microsoft/onnxruntime/tree/main/dockerfiles#rocm).
 
+#### Build Phython Wheel
+
+`./build.sh --config Release --build --build_wheel --parallel --use_rocm --rocm_home /opt/rocm`
+
+Then the python wheels(*.whl) could be found at ```./build/Linux/Release/dist```.
+
+---
+
 ## NNAPI
 
 Usage of NNAPI on Android platforms is via the NNAPI Execution Provider (EP).