Ten64 firmware release

Branch v0.9.0 built on 2023-06-20.
Commit log:
6db03b2a Remove obsolete 'uploader' folder


You can view the CI pipeline that built these artifacts at:
https://gitlab.com/traversetech/ls1088firmware/firmware-builder/-/pipelines/906267192
You can view the repository at:
https://gitlab.com/traversetech/ls1088firmware/firmware-builder

Usage
----------------------------------
The best way to reflash your Ten64 unit is to
use the recovery environment to run the "ten64-firmware-update.bin"
file, like so:
$ sh ten64-firmware-update.bin

If your Ten64 is unable to boot from flash, you can do
a restore from microSD by writing the "rescue-sdcard.img.xz"
(after decompressing) to a microSD card and to start your
Ten64 in SD-boot mode.

SD-boot mode can be activated by moving DIP Switch position 1
(nearest LEDs D2/D13) to the OFF position, see the quickstart
page for a reference:
https://ten64doc.traverse.com.au/quickstart/#dip-switch-and-board-led

The U-Boot menu will present a "Reflash Board" menu option.

Once the reflash is done you can move the DIP switch back to the
normal 'ON' position.

See https://ten64doc.traverse.com.au/software/firmwareupdate/
for more information on both methods.

You can also reflash individual files using U-Boot or
the recovery firmware, see the above page for details.