Straight forward conversion, just the hashsums needed to be
updated to sha256 now.
These were the last tests that used image_pow2ceil_expand in
boot_linux_console.py, so we can remove that function from that
file now, too.
Message-ID: <20241206102358.1186644-5-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>