Linux 4.19.51

Merge 108 patches from 4.19.51 stable
branch (119 total) beside 11 already merged patches:
5329dca percpu: remove spurious lock dependency between percpu and sched
5fbe39b PCI: dwc: Free MSI IRQ page in dw_pcie_free_msi()
06382ad ovl: do not generate duplicate fsnotify events for "fake" path
6ce2ad2 nvme-pci: unquiesce admin queue on shutdown
52d7b06 nvme-pci: shutdown on timeout during deletion
f7883f9 vfio: Fix WARNING "do not call blocking ops when !TASK_RUNNING"
4b19a45 iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel
31aa2a7 switchtec: Fix unintended mask of MRPC event
aeb743d x86/PCI: Fix PCI IRQ routing table memory leak
272f8c3d net: hns3: return 0 and print warning when hit duplicate MAC
afec706 ovl: support stacked SEEK_HOLE/SEEK_DATA
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

Makefile

 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 50
+SUBLEVEL = 51
 EXTRAVERSION =
 NAME = "People's Front"