util/release: make release archives reproducible

tar doesn't sort by default and takes the order of the OS which is in
most cases the order of creation. Sort by name and set influencing
environment TZ and language to be reproducible.

Change-Id: I3d043952417000d12e81353677f1ea4aa2da4fc1
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/16556
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
1 file changed