resources: remove iso_checksum_type from packer configurations

Since packer 1.6.0, iso_checksum_type configuration key has been
deprecated. Now packer only accepts iso_checksum key, and its
value must follow this format, "checksum_type:checksum".

One example is "md5:34416ff83179728d54583bf3f18d42d2".wq

JIRA: https://gem5.atlassian.net/browse/GEM5-755

Signed-off-by: Hoa Nguyen <hoanguyen@ucdavis.edu>
Change-Id: Ie9affb988289c210b3638fd781d6cd58970374e6
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/33616
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: Jason Lowe-Power <power.jg@gmail.com>
11 files changed
tree: 2910c29c5f3c6e23f4607a4df0c97853e8f865ce
  1. .gitignore
  2. README.md
  3. src/