Linux 4.19.33

Merge 130 patches from 4.19.33 stable
branch (135 total) beside 5 already merged patches:
2318c0e Bluetooth: Check L2CAP option sizes returned from l2cap_get_conf_opt
15d6538 Bluetooth: Verify that l2cap_get_conf_opt provides large enough buffer
6bba17f ipmi_si: Fix crash when using hard-coded device
d9d215b net-sysfs: call dev_hold if kobject_init_and_add success
72b790c4 fs/open.c: allow opening only regular files during execve()

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