SDL: Use SDL C runtime functions in OpenVR driver

SDL Commits
1 
From 52e64f816cd5842a5c1b513d7df6cbfe3daed732 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sat, 22 Feb 2025 12:21:10 -0800
Subject: [PATCH] Use SDL C runtime functions in OpenVR driver

Fixes link errors when building with -DSDL_LIBC=OFF
---
 src/video/openvr/SDL_openvrvideo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/openvr/SDL_openvrvideo.c b/src/video/openvr/SDL_openvrvideo.c
index a565260ad54d2..6387c374394b0 100644
--- a/src/video/openvr/SDL_openvrvideo.c
+++ b/src/video/openvr/SDL_openvrvideo.c
@@ -911,7 +911,7 @@ static SDL_GLContext OPENVR_GL_CreateContext(SDL_VideoDevice *_this, SDL_Window
 
     OPENVR_SetupFrame(_this, window);
 
-    SDL_GLContext result = malloc(sizeof(struct SDL_GLContextState));
+    SDL_GLContext result = SDL_malloc(sizeof(struct SDL_GLContextState));
     if (!result) {
         return NULL;
     }