stagefright aacenc: Avoid warnings about incompatible pointer types

Change-Id: Ida53cd1030ebb9feb0d6916e42e8ba67a90e86c7

Author: mstorsjo

media/libstagefright/codecs/aacenc/inc/aacenc_core.h

@@ -102,7 +102,7 @@ Word16 AacEncEncode(AAC_ENCODER		   *hAacEnc,
                     const UWord8       *ancBytes,      /*!< pointer to ancillary data bytes */
                     Word16             *numAncBytes,   /*!< number of ancillary Data Bytes, send as fill element  */
                     UWord8             *outBytes,      /*!< pointer to output buffer            */
-                    Word32             *numOutBytes    /*!< number of bytes in output buffer */
+                    VO_U32             *numOutBytes    /*!< number of bytes in output buffer */
                     );
 
 /*---------------------------------------------------------------------------

media/libstagefright/codecs/aacenc/src/aacenc_core.c

@@ -146,7 +146,7 @@ Word16 AacEncEncode(AAC_ENCODER *aacEnc,		/*!< an encoder handle */
                     const UWord8 *ancBytes,     /*!< pointer to ancillary data bytes */
                     Word16 *numAncBytes,		/*!< number of ancillary Data Bytes */
                     UWord8 *outBytes,           /*!< pointer to output buffer (must be large MINBITS_COEF/8*MAX_CHANNELS bytes) */
-                    Word32 *numOutBytes         /*!< number of bytes in output buffer after processing */
+                    VO_U32 *numOutBytes         /*!< number of bytes in output buffer after processing */
                     )
 {
   ELEMENT_INFO *elInfo = &aacEnc->elInfo;