Linux 4.19.54

Merge 136 patches from 4.19.53 and 4.19.54 stable
branch (138 total) beside 2 already merged patches:
c4e97af arm64/mm: Inhibit huge-vmap with ptdump
114e813 scsi: libsas: delete sas port if expander discover failed
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

Makefile

 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 53
+SUBLEVEL = 54
 EXTRAVERSION =
 NAME = "People's Front"