Add a check to test for a git repo before trying to do git submodule commands in autogen.sh
Add a check to test for a git repo before trying to do git submodule commands in autogen.sh

abouteiller/ucx,abouteiller/ucx,sergsagal1/ucx_rocm,shssf/ucx,abouteiller/ucx,shssf/ucx,sergsagal1/ucx_rocm,abouteiller/ucx,shssf/ucx,sergsagal1/ucx_rocm