Add undfined role for ec j-pake

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/library/psa_crypto_pake.c b/library/psa_crypto_pake.c
index 97aafb4..d9b2ecd 100644
--- a/library/psa_crypto_pake.c
+++ b/library/psa_crypto_pake.c
@@ -594,7 +594,7 @@
 
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
     if (operation->alg == PSA_ALG_JPAKE) {
-        operation->role = 0;
+        operation->role = MBEDTLS_ECJPAKE_NONE;
         mbedtls_platform_zeroize(operation->buffer, sizeof(operation->buffer));
         operation->buffer_length = 0;
         operation->buffer_offset = 0;