camera/roundtrip-qrcode doesn't find libmmal.so library

[omar-selo]

Bug Description

camera/roundtrip-qrcode job fails because of OSError: libmmal.so: cannot open shared object file: No such file or directory.

Cert-blocker Test Case

• cert-blocker

To Reproduce

Rerun http://10.102.156.15:8080/job/cert-rpi3aplus-arm64-core22-beta/

Expected Result

The test should've passed.

Actual Result

The test errors out because it can't find a particular library.

Environment

See this submission https://certification.canonical.com/hardware/201907-27199/submission/411144/

Relevant log output

Testing device name: vchiq

Input string: NlGGPCJAtc
Generating QR code...
Displaying on screen
Capture image of screen
Traceback (most recent call last):
  File "/tmp/nest-sb4_fxrb.16427a450e537741fc47ed5c55f4b9235c8cabe69831215cfcd65732683b2462/roundtrip_qr.py", line 128, in <module>
    main()
  File "/tmp/nest-sb4_fxrb.16427a450e537741fc47ed5c55f4b9235c8cabe69831215cfcd65732683b2462/roundtrip_qr.py", line 113, in main
    file = capture_rpi(name)
  File "/tmp/nest-sb4_fxrb.16427a450e537741fc47ed5c55f4b9235c8cabe69831215cfcd65732683b2462/roundtrip_qr.py", line 34, in capture_rpi
    import picamera
  File "/snap/checkbox/12338/checkbox-runtime/lib/python3.10/site-packages/picamera/__init__.py", line 72, in <module>
    from picamera.exc import (
  File "/snap/checkbox/12338/checkbox-runtime/lib/python3.10/site-packages/picamera/exc.py", line 41, in <module>
    import picamera.mmal as mmal
  File "/snap/checkbox/12338/checkbox-runtime/lib/python3.10/site-packages/picamera/mmal.py", line 49, in <module>
    _lib = ct.CDLL('libmmal.so')
  File "/snap/checkbox/12338/checkbox-runtime/usr/lib/python3.10/ctypes/__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: libmmal.so: cannot open shared object file: No such file or directory

Additional context

No response

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The internal ticket has been created: https://warthogs.atlassian.net/browse/CHECKBOX-1739.

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