The regular Leap 15.0 kernel update; sync with SLE15, mainly for addressing
mm and TSX security issues.

- xen/manage: don't complain about an empty value in control/sysrq
node (bsc#1065600).
- commit d8327b8

- copy_mount_string: Limit string length to PATH_MAX (bsc#1082943).
- Delete patches.fixes/get_fs_type-Validate-fs-type-string-argument.patch.
Refresh to upstream patch.
- commit 8717894

- xen: fix dom0 boot on huge systems (bsc#1127836).
- commit d4d49f5

- xen: remove pre-xen3 fallback handlers (bsc#1065600).
- commit c8c4f0a

- xen, cpu_hotplug: Prevent an out of bounds access (bsc#1065600).
- commit 60b6d9d

- Refresh
patches.suse/scsi-do-not-print-reservation-conflict-for-TEST-UNIT.patch
(bsc#1119843)
- commit 2c06a05

- nvme-fc: reject reconnect if io queue count is reduced to zero
(bsc#1128351).
- commit a512dae

- scripts/git_sort/git_sort.py: Update nvme git repository to 5.1
- commit cff4e76