[BL602]1.add bflb-iot-tool to chip-build-vscode;2.support build bl602-light in vscode; (#21572)

Author: stoneM2017

.vscode/tasks.json

@@ -331,6 +331,7 @@
                 "android-arm64-chip-tvserver",
                 "android-x64-chip-tool",
                 "android-x86-chip-tool",
+                "bl602-light",
                 "efr32-brd4161a-light",
                 "efr32-brd4163a-light",
                 "efr32-brd4164a-light",

integrations/docker/images/chip-build-vscode/Dockerfile

@@ -66,6 +66,11 @@ RUN set -x \
     && rm -rf /var/lib/apt/lists/* \
     && : # last line
 
+# Required for the Bouffalolab platform
+RUN set -x \
+    && pip3 install bflb-iot-tool \
+    && : # last line
+
 ENV AMEBA_PATH=/opt/ameba/ambd_sdk_with_chip_non_NDA
 ENV ANDROID_HOME=/opt/android/sdk
 ENV ANDROID_NDK_HOME=/opt/android/android-ndk-r21b