try fixing SDL2_image compilation

Author: JonathSpirit

deps/CMakeLists.txt

@@ -125,7 +125,7 @@ AddCmakeDependency(SDL2_image
         https://github.com/libsdl-org/SDL_image.git
         release-2.8.8
         ON
-        "-DSDL2IMAGE_SAMPLES=OFF -DSDL2IMAGE_DEPS_SHARED=OFF -DSDL2IMAGE_VENDORED=ON -DCMAKE_PREFIX_PATH=${CMAKE_CURRENT_BINARY_DIR}/libs/SDL2"
+        "-DCMAKE_POLICY_VERSION_MINIMUM=3.5 -DDAV1D_ASM=OFF -DSDL2IMAGE_SAMPLES=OFF -DSDL2IMAGE_DEPS_SHARED=OFF -DSDL2IMAGE_VENDORED=ON -DCMAKE_PREFIX_PATH=${CMAKE_CURRENT_BINARY_DIR}/libs/SDL2"
         "")
 add_dependencies(SDL2_image SDL2)