v2.15.1

For Linux kernel version: 5.9

Changes of existing tools:

• lsstp: Improve wording and fix typos in man page
• zkey: Ensure zkey and friends are skipped with HAVE_OPENSSL=0
• zkey: Add library versioning for libekmfweb and zkey-ekmfweb
• libutil: Add function to determine base device of a partition block device

Bug Fixes:

• dasdfmt: Fix bad file descriptor error when running on symlinks
• libdasd: Fix dasd_get_host_access_count()
• zipl: Fix multivolume dump
• zgetdump: Fix device node determination via sysfs to work with multivolume again
• genprotimg/boot: Fix build by disabling SSP
• zipl/boot: Fix build by disabling SSP