[mpp_hal]: add more hal api function

[misc]: remove anonymous struct name

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@208 6e48237b-75ef-9749-8fc9-41990f28c85a

inc/mpp_buffer.h

@@ -170,7 +170,7 @@ typedef enum {
  *
  * TODO: to be implemented.
  */
-typedef struct {
+typedef struct MppBufferInfo_t {
     MppBufferType   type;
     size_t          size;
     void            *ptr;