New upstream release 2.51.1
- interfaces: add netlink-driver interface
- interfaces: builtin: add dm-crypt interface to support external
storage encryption - interfaces/dsp: fix typo in udev rule
- overlord/snapstate: lock the mutex before returning from stop
snap services undo - interfaces: opengl: change path for Xilinx zocl driver
- interfaces/dsp: add /dev/cavalry into dsp interface
- packaging/fedora/snapd.spec: correct date format in changelog