SDL: Fixed the GLES2 shader count to be in sync with the enum

SDL Commits
1 
From 9ec2b35147764f725c99cc732ec7777d59dda6ab Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 15 Nov 2021 13:45:53 -0800
Subject: [PATCH] Fixed the GLES2 shader count to be in sync with the enum

---
 src/render/opengles2/SDL_shaders_gles2.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/render/opengles2/SDL_shaders_gles2.h b/src/render/opengles2/SDL_shaders_gles2.h
index a03a980fec..3a6e5b366c 100644
--- a/src/render/opengles2/SDL_shaders_gles2.h
+++ b/src/render/opengles2/SDL_shaders_gles2.h
@@ -45,11 +45,10 @@ typedef enum
     GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG,
     GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601,
     GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709,
-    GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES
+    GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES,
+    GLES2_SHADER_COUNT
 } GLES2_ShaderType;
 
-#define GLES2_SHADER_COUNT  16
-
 const Uint8 *GLES2_GetShader(GLES2_ShaderType type);
 
 #endif /* SDL_VIDEO_RENDER_OGL_ES2 */