Move a couple macros to more appropriate headers

OpenAL32/Include/alFilter.h

@@ -7,6 +7,8 @@
 extern "C" {
 #endif
 
+#define LOWPASSFREQREF  (5000)
+
 typedef struct {
     ALfloat coeff;
 #ifndef _MSC_VER

OpenAL32/Include/alMain.h

@@ -382,19 +382,13 @@ static __inline void UnlockUIntMapWrite(UIntMap *map)
 extern "C" {
 #endif
 
-
-#define DEFAULT_OUTPUT_RATE        (44100)
-#define MIN_OUTPUT_RATE            (8000)
-
-#define SPEEDOFSOUNDMETRESPERSEC   (343.3f)
-#define AIRABSORBGAINHF            (0.99426f) /* -0.05dB */
-
-#define LOWPASSFREQREF             (5000)
-
-
 struct Hrtf;
 
 
+#define DEFAULT_OUTPUT_RATE  (44100)
+#define MIN_OUTPUT_RATE      (8000)
+
+
 // Find the next power-of-2 for non-power-of-2 numbers.
 static __inline ALuint NextPowerOf2(ALuint value)
 {

OpenAL32/Include/alu.h

@@ -91,6 +91,9 @@ typedef ALvoid (*WetMixerFunc)(struct SendParams *params,
                                ALuint BufferSize);
 
 
+#define SPEEDOFSOUNDMETRESPERSEC  (343.3f)
+#define AIRABSORBGAINHF           (0.99426f) /* -0.05dB */
+
 #define FRACTIONBITS (14)
 #define FRACTIONONE  (1<<FRACTIONBITS)
 #define FRACTIONMASK (FRACTIONONE-1)