[Sound-open-firmware] SOF v1.3 released

[Liam Girdwood]

I'd like to announce that SOF v1.3 has now been released and is
available for download here.

https://github.com/thesofproject/sof/releases/tag/v1.3

The big ticket items in v1.3 are 

 o Kconfig build support - Individual features/components can be added
or removed.
 o HDMI, HDA support.
 o Improved PM support on Intel platforms.
 o NXP iMX8  - Initial DSP support added for iMX8.
 o GDB - Initial support for debugging firmware via GDB.

Alongside bug fixes and improved stability.

This firmware version will be the first version to upstream binaries to
the Linux firmware repository. This includes signed binaries for some
Intel platforms.

Thanks

Liam