jade setup_environment: tweak qemu clone following issue with upstream repo

Do not clone submodules recursively as an unused upstream module has
disappeared, and the qemu build handles fetching submodules as needed.
Also add flag to clone submodules without their entire history.

Author: Jamie C. Driver

test/setup_environment.sh

@@ -331,11 +331,10 @@ if [[ -n ${build_jade} ]]; then
     # Clone the upstream if the directory does not exist
     # Then build the emulator
     if [ ! -d "qemu" ]; then
-        git clone --depth 1 --branch ${ESP_QEMU_BRANCH} --single-branch --recursive https://github.com/espressif/qemu.git ./qemu
+        git clone --quiet --depth 1 --branch ${ESP_QEMU_BRANCH} --single-branch --shallow-submodules https://github.com/espressif/qemu.git ./qemu
         cd qemu
 
         git checkout ${ESP_QEMU_COMMIT}
-        git submodule update --recursive --init
         ./configure \
             --target-list=xtensa-softmmu \
             --enable-gcrypt \
@@ -374,7 +373,7 @@ if [[ -n ${build_jade} ]]; then
     # Clone the upstream if the directory does not exist
     # Then build and install the tools
     if [ ! -d "esp-idf" ]; then
-        git clone --depth=1 --branch ${ESP_IDF_BRANCH} --single-branch --recursive https://github.com/espressif/esp-idf.git ./esp-idf
+        git clone --quiet --depth=1 --branch ${ESP_IDF_BRANCH} --single-branch --recursive --shallow-submodules https://github.com/espressif/esp-idf.git ./esp-idf
         cd esp-idf
 
         git checkout ${ESP_IDF_COMMIT}