Regular Leap 42.3 kernel update to 4.4.90; sync with SLE12-SP3 update

- RDMA/bnxt_re: Allocate multiple notification queues
(bsc#1037579).
- RDMA/bnxt_re: Implement the alloc/get_hw_stats callback
(bsc#1037579).
- commit e075f7e

- Linux 4.4.90 (bnc#1012382).
- cifs: release auth_key.response for reconnect (bnc#1012382).
- mac80211: flush hw_roc_start work before cancelling the ROC
(bnc#1012382).
- KVM: PPC: Book3S: Fix race and leak in
kvm_vm_ioctl_create_spapr_tce() (bnc#1012382).
- tracing: Fix trace_pipe behavior for instance traces
(bnc#1012382).
- tracing: Erase irqsoff trace with empty write (bnc#1012382).
- md/raid5: preserve STRIPE_ON_UNPLUG_LIST in
break_stripe_batch_list (bnc#1012382).
- crypto: talitos - Don't provide setkey for non hmac hashing algs
(bnc#1012382).
- crypto: talitos - fix sha224 (bnc#1012382).
- KEYS: fix writing past end of user-supplied buffer in
keyring_read() (bnc#1012382).
- KEYS: prevent creating a different user's keyrings
(bnc#1012382).
- KEYS: prevent KEYCTL_READ on negative key (bnc#1012382).
- powerpc/pseries: Fix parent_dn reference leak in add_dt_node()
(bnc#1012382).
- Fix SMB3.1.1 guest authentication to Samba (bnc#1012382).
- SMB: Validate negotiate (to protect against downgrade) even
if signing off (bnc#1012382).