fix(apparmor): Import nvidia abstraction

[Talkless]

In Debian Sid, after upgrading to nvidia-tesla-470-driver, qTox forever freezes upon startup.

AppArmor denials:

type=AVC msg=audit(1666461161.036:2783): apparmor="DENIED"
operation="open" profile="qtox" name="/proc/modules" pid=5139
comm="qtox" requested_mask="r" denied_mask="r" fsuid=1000
ouid=0FSUID="vincas" OUID="root"

type=AVC msg=audit(1666461161.036:2784): apparmor="DENIED"
operation="exec" profile="qtox" name="/usr/bin/nvidia-modprobe" pid=5150
comm="qtox" requested_mask="x" denied_mask="x" fsuid=1000
ouid=0FSUID="vincas" OUID="root"

As it keeps waiting forever:

[pid  5306] clone(child_stack=NULL,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDstrace: Process
5317 attached
, child_tidptr=0x7f41ea70d750) = 5317
[pid  5317] set_robust_list(0x7f41ea70d760, 24) = 0
[pid  5306] wait4(5317,  <unfinished ...>
[pid  5317] execve("/usr/bin/nvidia-modprobe",
["/usr/bin/nvidia-modprobe"], 0x7ffc19b67258 /* 0 vars */) = -1 EACCES
(Permission denied)
[pid  5317] write(7, "\1\0\0\0\0\0\0\0", 8) = 8
[pid  5315] <... poll resumed>)         = 1 ([{fd=7, revents=POLLIN}])
[pid  5317] futex(0x55ed33f3f4d0,
FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, NULL,
FUTEX_BITSET_MATCH_ANY <unfinished ...>
[pid  5315] read(7, "\1\0\0\0\0\0\0\0", 16) = 8
[pid  5315] poll([{fd=7, events=POLLIN}, {fd=8, events=POLLIN}], 2, -1
<unfinished ...>
[pid  5314] <... poll resumed>)         = 1 ([{fd=3, revents=POLLIN}])
[pid  5314] recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="U\2P\1:\3\4\0\3\4\4\0\0\0\0\0\0\0\0\4\4\4\4\4\0\0\3\37%\2\0\0",
iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
[pid  5314] write(5, "\1\0\0\0\0\0\0\0", 8) = 8
[pid  5314] poll([{fd=3, events=POLLIN}], 1, -1

Allowing to read /proc/modules and other nvidia-driver-related files (by importing abstractions/nvidia) fixes this issue.

---

This change is 

[codecov-commenter]

Codecov Report

Base: 12.08% // Head: 12.08% // No change to project coverage 👍

Coverage data is based on head (5a33767) compared to base (b728849).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6666   +/-   ##
=======================================
  Coverage   12.08%   12.08%           
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  Files         308      308           
  Lines       20898    20898           
=======================================
  Hits         2526     2526           
  Misses      18372    18372           

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[sudden6]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: 0 of 1 LGTMs obtained