xtest: pkcs11: Fix parallel session test

When trying to open session without CKF_SERIAL_SESSION method should fail
with CKR_SESSION_PARALLEL_NOT_SUPPORTED.

Specified in:

PKCS #11 Cryptographic Token Interface Base Specification Version 2.40
Plus Errata 01
5.6 Session management functions
C_OpenSession

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
diff --git a/host/xtest/pkcs11_1000.c b/host/xtest/pkcs11_1000.c
index 3fca675..923bea7 100644
--- a/host/xtest/pkcs11_1000.c
+++ b/host/xtest/pkcs11_1000.c
@@ -363,7 +363,7 @@
 	session_flags = CKF_RW_SESSION;
 
 	rv = C_OpenSession(slot, session_flags, NULL, 0, &session[0]);
-	if (!ADBG_EXPECT_CK_RESULT(c, CKR_ARGUMENTS_BAD, rv))
+	if (!ADBG_EXPECT_CK_RESULT(c, CKR_SESSION_PARALLEL_NOT_SUPPORTED, rv))
 		goto bail;
 
 	session_flags = CKF_SERIAL_SESSION;