tests:tpm2d: add missing start_sw_tpm.sh script
* tests/tpm2dtests/start_sw_tpm.sh: New. * tests/tpm2dtests/Makefile.am: Add.
This accidentally got left out of the initial commit for testing
6720f1343 ("tpm2d: add tests for the tpm2daemon")
Added to Makefile and wrote tiny ChangeLog.
- Signed-off-by: Werner Koch <wk@gnupg.org>