Linux 4.19.27

Merge 75 patches from 4.19.27 stable
branch (79 total) beside 4 already merged patches

0655618 irqchip/gic-v3-mbi: Fix uninitialized mbi_lock
5024f0a sched/wait: Fix rcuwait_wake_up() ordering
2368e6d futex: Fix (possible) missed wakeup
9ad6216 locking/rwsem: Fix (possible) missed wakeup
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

Makefile

 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 26
+SUBLEVEL = 27
 EXTRAVERSION =
 NAME = "People's Front"