add patches from the -stable queue:

* add patches from the -stable queue:
  - bluetooth-clearly-distinguish-mgmt-ltk-type-from-authenticated-property
  - bluetooth-fix-properly-ignoring-ltks-of-unknown-types
  - lz4-fix-another-possible-overrun
  - x86_32-entry-do-syscall-exit-work-on-badsys-cve-2014-4508
  - epoll-fix-use-after-free-in-eventpoll_release_file
  - random-fix-nasty-entropy-accounting-bug
  - builddeb-use-objcopy-variable-instead-of-objcopy
  - efi-pstore-fix-an-overflow-on-32-bit-builds
NOT RELEASED YET

* NOT RELEASED YET
* set ABI to 2.slh.6.