SDL_mixer: updated after SDL_SIMDGetAlignment ->SDL_GetSIMDAlignment rename in SDL3

SDL Commits
1 
From 53fed9df996aced4933266f4cb7009cea0f4b4c7 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Thu, 16 May 2024 22:10:30 +0300
Subject: [PATCH] updated after SDL_SIMDGetAlignment ->SDL_GetSIMDAlignment
 rename in SDL3

---
 src/mixer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mixer.c b/src/mixer.c
index e7a02639..4a61ae55 100644
--- a/src/mixer.c
+++ b/src/mixer.c
@@ -343,7 +343,7 @@ mix_channels(void *udata, SDL_AudioStream *astream, int len, int total)
     (void)total;
 
     if (audio_mixbuflen < len) {
-        void *ptr = SDL_aligned_alloc(SDL_SIMDGetAlignment(), len);
+        void *ptr = SDL_aligned_alloc(SDL_GetSIMDAlignment(), len);
         if (!ptr) {
             return;  // oh well.
         }