Appstream Metadata: modalias globbing is case sensitive, usb PID/VID hex code are upper case

This issue was initially raised by: https://lintian.debian.org/tags/appstream-metadata-malformed-modalias-provide

In !2 (merged) , we added appstream metadata but the modalias globbing is case sensitive.
Example using: find /sys/devices/ -name modalias -print0 | xargs -0 cat
The USB ids are upper case, the globbing need to respect that too.

This is also explained at https://wiki.debian.org/AppStream/Guidelines