crt/xaudio2_9: Fix export names of `X3DAudioCalculate` and `X3DAudioInitialize`

These are not `__stdcall` functions, but `__cdecl` ones.

N.B. it was `__stdcall` in X3DAUDIO1_2.

Signed-off-by: LIU Hao <lh_mouse@126.com>

mingw-w64-crt/lib32/xaudio2_9.def

diff --git a/mingw-w64-crt/lib32/xaudio2_9.def b/mingw-w64-crt/lib32/xaudio2_9.def
index b283fab..610271d 100644
--- a/mingw-w64-crt/lib32/xaudio2_9.def
+++ b/mingw-w64-crt/lib32/xaudio2_9.def
@@ -9,8 +9,8 @@
 CreateAudioReverb@4
 CreateAudioVolumeMeter@4
 CreateFX@0
-X3DAudioCalculate@0
-X3DAudioInitialize@0
+X3DAudioCalculate
+X3DAudioInitialize
 CreateAudioReverbV2_8@4
 XAudio2CreateV2_9@12
 XAudio2CreateWithVersionInfo@16