swtpm: Include opensslv.h to get OPENSSL_VERSION_NUMBER

swtpm: Include opensslv.h to get OPENSSL_VERSION_NUMBER

Include openssl/opensslv.h to avoid the following error on Ubuntu:

fips.c: In function 'fips_mode_enabled':
fips.c:61:16: error: implicit declaration of function 'EVP_default_properties_is_fips_enabled' [-Werror=implicit-function-declaration]
   61 |     int mode = EVP_default_properties_is_fips_enabled(NULL);
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Resolves: https://github.com/stefanberger/libtpms/issues/345
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>