52: Create Required Asset Dir
52: Create Required Asset Dir

In some instances the directory '/usr/psp-sev-assets' does not exist. If
the path does not exist, sev-tool will fail to write or rename the VCEK
certificate chain files. This addresses this problem by attempting to
create the required directory when it does not exist.

Signed-off-by: Larry Dewey <968845783c158b6287022517450dc1205322081b@SCS-L10-lardewe.amd.com>

AMDESE/sev-tool,AMDESE/sev-tool,AMDESE/sev-tool