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/md2.h b/include/mbedtls/md2.h
index 51d7948..0f93fbf 100644
--- a/include/mbedtls/md2.h
+++ b/include/mbedtls/md2.h
@@ -1,5 +1,5 @@
 /**
- * \file mbedtls_md2.h
+ * \file md2.h
  *
  * \brief MD2 message digest algorithm (hash function)
  *