Add missing error codes to psa_generate_random
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index b999fd1..89dbd3f 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -3531,6 +3531,7 @@
  * \retval #PSA_SUCCESS
  * \retval #PSA_ERROR_NOT_SUPPORTED
  * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
  * \retval #PSA_ERROR_COMMUNICATION_FAILURE
  * \retval #PSA_ERROR_HARDWARE_FAILURE
  * \retval #PSA_ERROR_CORRUPTION_DETECTED