libnvidia-container: fix arm64 build

[arnaldo2792]

Issue number:
N / A

Description of changes:

libnvidia-container: fix arm64 build

The arm64 build doesn't provide a symlink to
libnvidia-container.so.<version>, which causes runtime errors when the
NVIDIA prestart hooks run.

Testing done:
Launched a aws-k8s-1.21 g5g instance, with NVIDIA tools. The orchestrated containers were set up correctly, and I was able to call nvidia-smi:

❯ kubectl exec nvidia-device-plugin-1642187599-jb8tc -n kube-system -it -- sh -c "uname -a && nvidia-smi"
Linux nvidia-device-plugin-1642187599-jb8tc 5.10.75 #1 SMP Fri Jan 14 18:15:25 UTC 2022 aarch64 aarch64 aarch64 GNU/Linux

Tue Jan 18 17:37:52 2022
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 470.82.01    Driver Version: 470.82.01    CUDA Version: N/A      |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  NVIDIA T4G          Off  | 00000000:00:1F.0 Off |                    0 |
| N/A   39C    P8     9W /  70W |      0MiB / 15109MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.

[bcressey]

LGTM apart from some wording nits - but would like to see the commit message updated to reflect the actual root cause (ldconfig)