SDL_image: stb_image.h: remove stdlib.h dependency from the latest upgrade.

From 0581d0611551b1574a39d87293ce6a33b4a87333 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sat, 28 May 2022 17:56:56 +0300
Subject: [PATCH] stb_image.h: remove stdlib.h dependency from the latest
 upgrade.

---
 stb_image.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/stb_image.h b/stb_image.h
index 7ca4107..8422a97 100644
--- a/stb_image.h
+++ b/stb_image.h
@@ -380,9 +380,14 @@ enum
    STBI_rgb_alpha  = 4
 };
 
+#if 0 /* SDL_image change */
 #include <stdlib.h>
 typedef unsigned char stbi_uc;
 typedef unsigned short stbi_us;
+#else
+typedef Uint8  stbi_uc;
+typedef Uint16 stbi_us;
+#endif
 
 #ifdef __cplusplus
 extern "C" {