audio/mac: fix build on big-endian
/wrkdirs/usr/ports/audio/mac/work/mac-11.91/Source/MACLib/Prepare.cpp:35:5: error: use of undeclared identifier 'SwitchBufferBytes'
35 | SwitchBufferBytes(const_cast<unsigned char *>(pRawData), pWaveFormatEx->wBitsPerSample / 8, nTotalBlocks * pWaveFormatEx->nChannels); | ^
/wrkdirs/usr/ports/audio/mac/work/mac-11.91/Source/MACLib/Prepare.cpp:41:5: error: use of undeclared identifier 'SwitchBufferBytes'
41 | SwitchBufferBytes(const_cast<unsigned char *>(pRawData), pWaveFormatEx->wBitsPerSample / 8, nTotalBlocks * pWaveFormatEx->nChannels); | ^
/wrkdirs/usr/ports/audio/mac/work/mac-11.91/Source/MACLib/Prepare.cpp:980:5: error: use of undeclared identifier 'SwitchBufferBytes'
980 | SwitchBufferBytes(const_cast<unsigned char *>(pRawData), pWaveFormatEx->wBitsPerSample / 8, nBlocks * pWaveFormatEx->nChannels);
| ^/wrkdirs/usr/ports/audio/mac/work/mac-11.91/Source/MACLib/Prepare.cpp:987:5: error: use of undeclared identifier 'SwitchBufferBytes'
987 | SwitchBufferBytes(const_cast<unsigned char *>(pRawData), pWaveFormatEx->wBitsPerSample / 8, nBlocks * pWaveFormatEx->nChannels);
| ^4 errors generated.