tests/pkd: Fix elif without expression

This was introduced during fixes to run pkd tests in FIPS mode.

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>

tests/pkd/pkd_hello.c

@@ -261,7 +261,7 @@ static int torture_pkd_setup_ecdsa_521(void **state) {
     f(client, ecdsa_256_diffie_hellman_group_exchange_sha256, kexcmd(GEX_SHA256),              setup_ecdsa_256,  teardown) \
     f(client, ecdsa_384_diffie_hellman_group_exchange_sha256, kexcmd(GEX_SHA256),              setup_ecdsa_384,  teardown) \
     f(client, ecdsa_521_diffie_hellman_group_exchange_sha256, kexcmd(GEX_SHA256),              setup_ecdsa_521,  teardown)
-#elif /* !defined(WITH_GEX) */
+#else /* !defined(WITH_GEX) */
 #define PKDTESTS_KEX_FIPS(f, client, kexcmd) \
     f(client, rsa_ecdh_sha2_nistp256,                 kexcmd("ecdh-sha2-nistp256"),            setup_rsa,        teardown) \
     f(client, rsa_ecdh_sha2_nistp384,                 kexcmd("ecdh-sha2-nistp384"),            setup_rsa,        teardown) \