Build SystemDevicesRadix Platformtoolchains

Toolchain 1.3.2

On August 14, 2017 version 7.2.0 of the GNU Compiler Collection has been released and we updated the branch toolchains-1.3.x to GCC 7.2.0.

Issues related to using GNU Libc 2.26 were fixed in GCC 7.2.0 and corresponded patches are not needed now.

The toolchain collection based on GCC-7.2.0 and GNU Libc 2.26 is available for download at FTP-server.

Source code was developed on the toolchains-1.3.x branch.

Also the GIT mirror has been updated.