debian/patches: add a patch to fix udev rules

debian/patches: add a patch to fix udev rules

Add debian/patches/contrib-add-TAG-uaccess-to-udev-rules.patch to
support the systemd way to provide access to devices.

The patch fixes the following lintian warning:

W: libam7xxx0.1: udev-rule-missing-uaccess lib/udev/rules.d/60-libam7xxx0.1.rules:2 user accessible device missing TAG+="uaccess"
N:
N:    The package set up a device for user access without using the uaccess
N:    tag. Some udev rules get the same effect using other markers enabling
N:    console user access using rules in /lib/udev/rules.d/70-uaccess.rules.
N:    Others should specify TAG+="uaccess" in the udev rule.
N:
N:    Refer to https://wiki.debian.org/USB/GadgetSetup for details.
N:
N:    Severity: normal, Certainty: possible
N:
N:    Check: udev, Type: binary
N: