In order to fix swtpm logs access permissions and to use the same
approach among Compute specific users (qemu, tss, libvirt, nova):
* Add nova to tss group for swtpm tool to function in virtqemud
when running w/o root access.
* Change tss user uid/gid/home dir config in TCIB similarly to qemu,
for consistency reasons.
There is no upgrade impact as vTPM had never been technically released
in the layered downstream product.
Related: rhbz#1782128
Change-Id: Id242a20b7f1193ca2d9a0d7508e12f0f68cfc018
Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>