Linux 4.19.69

Merge 178 patches from 4.19.68 and 4.19.69 stable
branch (187 total) beside 9 already merged patches:
46f9a1b ALSA: usb-audio: Fix a stack buffer overflow bug in check_input_term
58b9f19 ALSA: usb-audio: Fix an OOB bug in parse_audio_mixer_unit
a1cd2f7 dm: disable DISCARD if the underlying storage no longer supports it
d61d8ea bonding: Add vlan tx offload to hw_enc_features
cf13e30 userfaultfd_release: always remove uffd flags and clear vm_userfaultfd_ctx
8114012 dm btree: fix order of block initialization in btree_split_beneath
53e73d1 dm space map metadata: fix missing store of apply_bops() return value
11f85d4 xfs: fix missing ILOCK unlock when xfs_setattr_nonsize fails due to EDQUOT
17c2b7a xfs: don't trip over uninitialized buffer on extent read of corrupted inode

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>