SDL_image: cmake: aom requires neon on ARM

SDL Commits
1 
From 9136a67d4f9f35b1b5ef1bc7a55f59300605d9b6 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Thu, 8 Jan 2026 22:32:03 +0100
Subject: [PATCH] cmake: aom requires neon on ARM

---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 65a242fd..85a803d2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -523,6 +523,7 @@ if(SDLIMAGE_AOM)
           set(AOM_TARGET_CPU "x86_64")
         elseif(SDL_CPU_ARM32)
           set(AOM_TARGET_CPU "arm")
+          set(AOM_NEON_INTRIN_FLAG "-mfpu=neon" CACHE STRING "AOM CFLAGS for enabling neon intrinsics")
         elseif(SDL_CPU_ARM64)
           set(AOM_TARGET_CPU "aarch64")
         endif()