payloads/external: Clone GRUB2 over HTTPS

Since the git:// protocol is unencrypted and unauthenticated, there's a
security risk associated with using it: A man-in-the-middle attacker
could replace e.g. the master branch with malicious code.

Mitigate this risk somewhat by cloning GRUB2 via HTTPS.

Change-Id: Ice8f8d108e7dfa1a1ecd58d9735944fa9570ace8
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/21344
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>

0 files changed, 0 insertions, 0 deletions