package/libgit2: bump to version 1.8.0

The license file was updated for two reasons:
* This version now bundles ntlmclient.  NTLM support is disabled by
  the buildroot package.
* The bundled zlib version (that buildroot does not use) was updated and
  its copyright years changed.

This version also adds support for using the SSH binary (at an hardcoded
/usr/bin/ssh path) instead of using libssh2.

Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2 files changed