* scripts: ignore download_hash download failures

Binary names on github releases often change and this script might break
because of that, this commit allow to ignore these failures as a mean to
be able to run the script anyway.

Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>

* scripts: use sha256sums for crio as well

Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>

* scripts: add ppc64le support for crio

Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>

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Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>