ti-sci-fw: Update to 2020.08-rc3 system firmware
ti-sci-fw: Update to 2020.08-rc3 system firmware

Signed-off-by: Dan Murphy <50b72235ef2106735bf2282950a69d11e6d56bc7@ti.com>

rcn-ee/meta-ti,rcn-ee/meta-ti,rcn-ee/meta-ti,rcn-ee/meta-ti