Merge tag 'tags/s390x-2018-05-02' into staging

Merge tag 'tags/s390x-2018-05-02' into staging

s390-ccw firmware updates:
- Improvements to the boot menu (can now handle non-sequential entries)
- s390-netboot now resets the machine before jumping into the OS kernel
- s390-netboot now supports indirect loading via .INS files
- some other minor fixes and clean-ups

# gpg: Signature made Wed 02 May 2018 04:15:21 PM CEST
# 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/s390x-2018-05-02':
  pc-bios/s390: Update firmware images
  s390-ccw: force diag 308 subcode to unsigned long
  pc-bios/s390-ccw/net: Add support for .INS config files
  pc-bios/s390-ccw/net: Use diag308 to reset machine before jumping to the OS
  pc-bios/s390-ccw/net: Split up net_load() into init, load and release parts
  pc-bios/s390-ccw: fix non-sequential boot entries (enum)
  pc-bios/s390-ccw: fix non-sequential boot entries (eckd)
  pc-bios/s390-ccw: fix loadparm initialization and int conversion
  pc-bios/s390-ccw: rename MAX_TABLE_ENTRIES to MAX_BOOT_ENTRIES
  pc-bios/s390-ccw: size_t should be unsigned

Signed-off-by: Cornelia Huck <cohuck@redhat.com>