sdxl CI fixes

.github/workflows/test_sdxl.yml

@@ -1,4 +1,4 @@
-name: SDXL Hourly
+name: SDXL E2E Pipeline CI
 
 on:
   workflow_dispatch:
@@ -63,17 +63,17 @@ jobs:
       
       - name: Build IREE
         run: |
+          cd $GITHUB_WORKSPACE/iree
           python3.11 -m venv iree_venv
           source iree_venv/bin/activate
           pip install --upgrade pip
           pip install -r runtime/bindings/python/iree/runtime/build_requirements.txt
-          cd $GITHUB_WORKSPACE/iree
           git submodule update --init
           cmake -S . -B build-release \
             -G Ninja -DCMAKE_BUILD_TYPE=Release \
             -DCMAKE_C_COMPILER=`which clang` -DCMAKE_CXX_COMPILER=`which clang++` \
             -DIREE_HAL_DRIVER_CUDA=OFF \
-            -DIREE_EXTERNAL_HAL_DRIVERS="rocm" \
+            -DIREE_HAL_DRIVER_HIP=ON \
             -DIREE_BUILD_PYTHON_BINDINGS=ON \
             -DPython3_EXECUTABLE="$(which python3)"
           export PATH="$GITHUB_WORKSPACE/iree/build-release/tools:$PATH"