DSP HLE: Broken PCM16 and handle DSP voice status better

include/audio/dsp_shared_mem.hpp

@@ -297,7 +297,7 @@ namespace Audio::HLE {
 			u8 isEnabled;             ///< Is this channel enabled? (Doesn't have to be playing anything.)
 			u8 currentBufferIDDirty;  ///< Non-zero when current_buffer_id changes
 			u16_le syncCount;         ///< Is set by the DSP to the value of SourceConfiguration::sync_count
-			u32_dsp bufferPosition;   ///< Number of samples into the current buffer
+			u32_dsp samplePosition;   ///< Number of samples into the current buffer
 			u16_le currentBufferID;   ///< Updated when a buffer finishes playing
 			u16_le lastBufferID;      ///< Updated when all buffers in the queue finish playing
 		};