SDL: audio: Fixed compiler warning on Android NDK.

https://github.com/libsdl-org/SDL/commit/b49ce86765f5ced6935a33ce5a08604ea973b3c6

From b49ce86765f5ced6935a33ce5a08604ea973b3c6 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Sat, 29 Jul 2023 19:43:41 -0400
Subject: [PATCH] audio: Fixed compiler warning on Android NDK.

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

diff --git a/src/audio/SDL_audiocvt.c b/src/audio/SDL_audiocvt.c
index d7e2c54f412e..0098504e22d3 100644
--- a/src/audio/SDL_audiocvt.c
+++ b/src/audio/SDL_audiocvt.c
@@ -1036,7 +1036,7 @@ int SDL_GetAudioStreamData(SDL_AudioStream *stream, void *voidbuf, int len)
         int approx_request = len / stream->dst_sample_frame_size;  // start with sample frames desired
         if (stream->src_spec.freq != stream->dst_spec.freq) {
             // calculate difference in dataset size after resampling. Use a Uint64 so the multiplication doesn't overflow.
-            approx_request = (size_t) ((((Uint64) approx_request) * stream->src_spec.freq) / stream->dst_spec.freq);
+            approx_request = (int) (size_t) ((((Uint64) approx_request) * stream->src_spec.freq) / stream->dst_spec.freq);
             if (!stream->flushed) {  // do we need to fill the future buffer to accomodate this, too?
                 approx_request += stream->future_buffer_filled_frames - stream->resampler_padding_frames;
             }