imv-attestation: Fixed file hash measurements

The introduction of file versions broke file hash measurements.
This has been fixed by using a generic product versions having an
empty package name.

testing/tests/tnc/tnccs-20-os-pts/pretest.dat

@@ -17,9 +17,9 @@ carol::service charon start
 dave::service charon start
 moon::expect-connection rw-allow
 moon::expect-connection rw-isolate
-carol::expect-connection home
-carol::swanctl --initiate --child home 2> /dev/null
 dave::expect-connection home
 dave::swanctl --initiate --child home 2> /dev/null
+carol::expect-connection home
+carol::swanctl --initiate --child home 2> /dev/null
 moon::ipsec attest --sessions
 moon::ipsec attest --devices