Merge tag 'tags/s390-ccw-bios-2018-02-26' into s390-next

Boot menu patches by Collin L. Walling

# gpg: Signature made Mon 26 Feb 2018 11:24:21 AM CET
# gpg:                using RSA key 2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [undefined]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [undefined]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]

* tag 'tags/s390-ccw-bios-2018-02-26':
  pc-bios/s390: Rebuild the s390x firmware images with the boot menu changes
  s390-ccw: interactive boot menu for scsi
  s390-ccw: use zipl values when no boot menu options are present
  s390-ccw: set cp_receive mask only when needed and consume pending service irqs
  s390-ccw: read user input for boot index via the SCLP console
  s390-ccw: print zipl boot menu
  s390-ccw: read stage2 boot loader data to find menu
  s390-ccw: set up interactive boot menu parameters
  s390-ccw: parse and set boot menu options
  s390-ccw: move auxiliary IPL data to separate location
  s390-ccw: update libc
  s390-ccw: refactor IPL structs
  s390-ccw: refactor eckd_block_num to use CHS
  s390-ccw: refactor boot map table code