Fix logical dead code found by Coverity

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/library/psa_crypto_pake.c b/library/psa_crypto_pake.c
index caba5a1..8de8569 100644
--- a/library/psa_crypto_pake.c
+++ b/library/psa_crypto_pake.c
@@ -178,12 +178,12 @@
         return status;
     }
 
-    psa_crypto_driver_pake_get_user_len(inputs, &user_len);
+    status = psa_crypto_driver_pake_get_user_len(inputs, &user_len);
     if (status != PSA_SUCCESS) {
         return status;
     }
 
-    psa_crypto_driver_pake_get_peer_len(inputs, &peer_len);
+    status = psa_crypto_driver_pake_get_peer_len(inputs, &peer_len);
     if (status != PSA_SUCCESS) {
         return status;
     }