Combine psa_pake_set_password_key and psa_pake_setup into a single function

Signed-off-by: Anton Matkin <anton.matkin@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 051fce3..dee8029 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1827,7 +1827,7 @@
                                                  256));
     psa_pake_cs_set_hash(&cipher_suite, PSA_ALG_SHA_256);
 
-    status = psa_pake_setup(&ssl->handshake->psa_pake_ctx, &cipher_suite);
+    status = psa_pake_setup(&ssl->handshake->psa_pake_ctx, pwd, &cipher_suite);
     if (status != PSA_SUCCESS) {
         return status;
     }
@@ -1854,11 +1854,6 @@
         return status;
     }
 
-    status = psa_pake_set_password_key(&ssl->handshake->psa_pake_ctx, pwd);
-    if (status != PSA_SUCCESS) {
-        return status;
-    }
-
     ssl->handshake->psa_pake_ctx_is_ok = 1;
 
     return PSA_SUCCESS;