crc delete cleans up standalone snapshot

[xek]

Looks like the snapshot (or the whole standalone domain), created with make standalone; make standalone_snapshot is saved in a directory that is removed by crc delete.

It then fails with:

$ make standalone_revert
virsh --connect=qemu:///system snapshot-revert --domain edpm-compute-0 --snapshotname clean
error: Cannot access storage file '/home/ospng/.crc/machines/crc/edpm-compute-0.qcow2' (as uid:107, gid:107): No such file or directory

make: *** [Makefile:451: standalone_revert] Error 1