Set python programs executable and add interpreter

The sheebang and mode changes were done so that
the user can directly use the program and doesn't need
to find the right python interpreter first.

Change-Id: Ic165a75801d0e3459e235b2aaf2863e36af5461b
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-on: https://review.coreboot.org/18529
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
4 files changed