[google/syzkaller] 5bc3be: executor: fix initialize_tun() for Android (#3656)

[kalder]

Branch: refs/heads/master
Home: https://github.com/google/syzkaller
Commit: 5bc3be51cc65ecf6d4532ac7c93b6d5d284d5a38
https://github.com/google/syzkaller/commit/5bc3be51cc65ecf6d4532ac7c93b6d5d284d5a38
Author: kalder <6106486...@users.noreply.github.com>
Date: 2023-02-06 (Mon, 06 Feb 2023)

Changed paths:
M executor/common_linux.h
M pkg/csource/generated.go

Log Message:
-----------
executor: fix initialize_tun() for Android (#3656)

Android devices often fail during the initial check with the error:

SYZFAIL: tun: ioctl(TUNSETIFF) failed

We need the same namespacing here that is used for other sandboxing
configurations.