Revert "SELinux: su: update policies"

This reverts commit 10713bc7b69d511af03facc0283cb0f769d87669.
selinux: Workaround for devices with PR_SET_NO_NEW_PRIVS enforcement

PR_SET_NO_NEW_PRIVS blocks domain transitions from within app_process,
unless the new domain is bounded by the app's context. So we can't
switch to a domain that has perms not available to untrusted_app :(

This means any app can talk to the daemon, bypassing the su executable
client. That's not a good thing, and needs to be resolved.

Change-Id: I85b74f90b8737caaa193a0555b5262e7392519b2
cm: add sepolicy entry for lockscreen wallpaper

Change-Id: Ie779392ab8118d192873a01ec5c7de3e5938ed17
Signed-off-by: Roman Birg <roman@cyngn.com>
Add Bulsatcom APN

Change-Id: Iedde9248dae63ce5ad030c7713192f0a64f1d038
(cherry picked from commit 12e4e186cb111adcaf628fae0c6471fd22770470)