[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

osal/mpp_allocator_impl.h

@@ -20,7 +20,7 @@
 #include "mpp_thread.h"
 #include "os_allocator.h"
 
-typedef struct {
+typedef struct MppAllocatorImpl_t {
     pthread_mutex_t lock;
     MppBufferType   type;
     size_t          alignment;