HSD #14013247745-1: firmware: stratix10-svc: extend for single certificate

commit  d7bdb2ebb69e58f6ba8e29e6477cd91b9e982ca8 from
https://github.com/altera-opensource/linux-socfpga.git

Extend Intel service layer driver to support a single certificate to allow
unauthenticated updates to the PTS counter.

PTS = Pseudo Time Stamp

Signed-off-by: Richard Gong <richard.gong@intel.com>
Signed-off-by: Meng Li <Meng.Li@windriver.com>