configs/zynqmp_zcu10x: change git to https

The git:// location is no longer supported by github, so change to https://

For more details:
https://github.blog/2021-09-01-improving-git-protocol-security-github/



Signed-off-by: Neal Frager <neal.frager@amd.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>