Install Toolchains for Rockchip Platform

To build an environment for compiling Android, it is recommended to use 64-bit Ubuntu 16.04. The following software packages need to be installed:

$ sudo apt-get install bison g++-multilib git gperf libxml2-utils make python-networkx zip
$ sudo apt-get install flex curl libncurses5-dev libssl-dev zlib1g-dev gawk minicom
$ sudo apt-get install exfat-fuse exfat-utils device-tree-compiler liblz4-tool
$ sudo apt-get install openjdk-8-jdk