4.15-stable patches

4.15-stable patches

added patches:
	nfs-fix-an-incorrect-type-in-struct-nfs_direct_req.patch
	nfs-fix-unstable-write-completion.patch
	pnfs-prevent-the-layout-header-refcount-going-to-zero-in-pnfs_roc.patch
	scsi-qla2xxx-clear-loop-id-after-delete.patch
	scsi-qla2xxx-defer-processing-of-gs-iocb-calls.patch
	scsi-qla2xxx-fix-abort-command-deadlock-due-to-spinlock.patch
	scsi-qla2xxx-fix-gpnid-error-processing.patch
	scsi-qla2xxx-fix-login-state-machine-stuck-at-gpdb.patch
	scsi-qla2xxx-fix-memory-leak-in-dual-target-mode.patch
	scsi-qla2xxx-fix-npiv-host-cleanup-in-target-mode.patch
	scsi-qla2xxx-fix-prli-state-check.patch
	scsi-qla2xxx-fix-re-login-for-nport-handle-in-use.patch
	scsi-qla2xxx-fix-relogin-being-triggered-too-fast.patch
	scsi-qla2xxx-fix-scan-state-field-for-fcport.patch
	scsi-qla2xxx-fix-system-crash-for-notify-ack-timeout-handling.patch
	scsi-qla2xxx-fix-system-crash-in-qlt_plogi_ack_unref.patch
	scsi-qla2xxx-move-session-delete-to-driver-work-queue.patch
	scsi-qla2xxx-relogin-to-target-port-on-a-cable-swap.patch
	scsi-qla2xxx-remove-aborting-els-iocb-call-issued-as-part-of-timeout.patch
	scsi-qla2xxx-replace-fcport-alloc-with-qla2x00_alloc_fcport.patch
	scsi-qla2xxx-retry-switch-command-on-time-out.patch
	scsi-qla2xxx-serialize-gpnid-for-multiple-rscn.patch
	scsi-qla2xxx-skip-irq-affinity-for-target-qpairs.patch
	x86-xen-calculate-__max_logical_packages-on-pv-domains.patch