scripts: Use https URL to download piglit

This makes life easier for users behind network proxies. A simple
'export https_proxy=<proxy url>' will make this works, today user
needs to do a more complicated setup in ssh/git with proxy
information.

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>
1 file changed