Enhance build script for webOS example

* Do not use 'sudo' when installing webOS NDK, but use '-d'
  to designate the install path as non-root path.
* Do not 'wget' webOS SDK, but include it as git submodule

scripts/examples/webos_example.sh

@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
-
 #
-#    Copyright (c) 2021 Project CHIP Authors
+#    Copyright (c) 2022 Project CHIP Authors
 #
 #    Licensed under the Apache License, Version 2.0 (the "License");
 #    you may not use this file except in compliance with the License.
@@ -16,26 +15,22 @@
 #    limitations under the License.
 #
 
-# Download webOS OSE NDK
-echo "##### Download webOS OSE NDK #####"
-wget https://sourceforge.net/projects/webos-iotivity-patches/files/webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.sh
-wget https://sourceforge.net/projects/webos-iotivity-patches/files/webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.host.manifest
-wget https://sourceforge.net/projects/webos-iotivity-patches/files/webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.target.manifest
-wget https://sourceforge.net/projects/webos-iotivity-patches/files/webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.testdata.json
+# Activating connectedhomeip build environment
+source scripts/activate.sh
+
+# Extract webOS SDK
+cat third_party/webos_sdk/v2.14.1/webos_sdk.tar* | (cd third_party/webos_sdk/v2.14.1/;tar xvzf -)
 
 # Grant execute permission for NDK install script
-chmod 555 webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.sh
+chmod 555 third_party/webos_sdk/v2.14.1/webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.sh
 
 # Install webOS OSE NDK
 echo "##### Install webOS OSE NDK #####"
-sudo ./webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.sh
-
-# Activating connectedhomeip build environment
-source scripts/activate.sh
+third_party/webos_sdk/v2.14.1/webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.sh -d third_party/webos_sdk/v2.14.1 -y
 
 # Activating webOS NDK build environment
 echo "##### Activating webOS NDK build environment #####"
-source /opt/webos-sdk-x86_64/environment-setup-cortexa7t2hf-neon-vfpv4-webos-linux-gnueabi
+source third_party/webos_sdk/v2.14.1/environment-setup-cortexa7t2hf-neon-vfpv4-webos-linux-gnueabi
 echo ""
 
 # Build webos example
@@ -45,9 +40,3 @@ gn gen out/host --args="is_debug=false target_os=\"webos\" target_cpu=\"arm\" ch
 
 echo "##### Building by ninja #####"
 ninja -C out/host
-
-# Remove webOS OSE NDK archive
-rm -rf webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.host.manifest
-rm -rf webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.sh
-rm -rf webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.target.manifest
-rm -rf webos-sdk-x86_64-cortexa7t2hf-neon-vfpv4-toolchain-2.14.1.g.testdata.json