slowroll branch build for Leap

Non free or non open source parts of openSUSE Leap 15.1.

TSS2 is a user space Trusted Computing Group's Software Stack (TSS) for
TPM 2.0. It implements the functionality equivalent to the TCG TSS
working group's ESAPI, SAPI, and TCTI layers (and perhaps more) but with
a hopefully far simpler interface.