SDL: added "gpu" to the list of possible values of SDL_HINT_RENDER_DRIVER in SDL_hints.h

SDL Commits
1 
From b7a31ead08471c9cd84b95fbdd1c6f426fed4901 Mon Sep 17 00:00:00 2001
From: Nicolas Allemand <[EMAIL REDACTED]>
Date: Tue, 3 Dec 2024 17:59:56 +0100
Subject: [PATCH] added "gpu" to the list of possible values of
 SDL_HINT_RENDER_DRIVER in SDL_hints.h

---
 include/SDL3/SDL_hints.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/SDL3/SDL_hints.h b/include/SDL3/SDL_hints.h
index 97b85962661e1..475fcb956d93d 100644
--- a/include/SDL3/SDL_hints.h
+++ b/include/SDL3/SDL_hints.h
@@ -2862,6 +2862,7 @@ extern "C" {
  * - "opengles"
  * - "metal"
  * - "vulkan"
+ * - "gpu"
  * - "software"
  *
  * The default varies by platform, but it's the first one in the list that is