- Makes swtpm_setup.conf.in consistent with the rest of the sample
configuration files in swtpm, whose templates ship in samples/ and
install the generated files to /etc.
- Works around dh_missing(1) erroneously reporting swtpm_setup.conf as
non-installed due to its having two copies in the build tree (one in
etc/ and another in debian/tmp/etc/).
Signed-off-by: Nick Chevsky <nchevsky@users.noreply.github.com>