Various fixes to doxygen API generation

 * Fixed incorrect file definitions
 * Fixed accidental tag problems in ecjpake.h
 * Corrected function naming in X.509 module definition
diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h
index c50c4ef..9490964 100644
--- a/include/mbedtls/x509_crl.h
+++ b/include/mbedtls/x509_crl.h
@@ -1,5 +1,5 @@
 /**
- * \file mbedtls_x509_crl.h
+ * \file x509_crl.h
  *
  * \brief X.509 certificate revocation list parsing
  *
@@ -100,7 +100,7 @@
  *
  * \param chain    points to the start of the chain
  * \param buf      buffer holding the CRL data in DER format
- *                 (including the terminating null byte for PEM data)
+ * \param buflen   size of the buffer
  *
  * \return         0 if successful, or a specific X509 or PEM error code
  */