Revert "opengles2: Restore previous default texture_formats."

This reverts commit 9f7ccbe.

Fixes libsdl-org#13109.

(cherry picked from commit 3c08172)

Author: icculus

src/render/opengles2/SDL_render_gles2.c

@@ -2221,8 +2221,8 @@ SDL_RenderDriver GLES2_RenderDriver = {
     { "opengles2",
       (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_TARGETTEXTURE),
       4,
-      { SDL_PIXELFORMAT_BGRA32,
-        SDL_PIXELFORMAT_ABGR32,
+      { SDL_PIXELFORMAT_RGBA32,
+        SDL_PIXELFORMAT_BGRA32,
         SDL_PIXELFORMAT_BGRX32,
         SDL_PIXELFORMAT_RGBX32 },
       0,