package/sdl_image: fix WebP dynamically loaded on host build

Just like with libjpeg and libpng, we don't want libwebp to be
dynamically loaded by SDL_image at runtime.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/sdl_image/sdl_image.mk

@@ -43,7 +43,8 @@ HOST_SDL_IMAGE_CONF_OPTS = \
 	--disable-static \
 	--disable-jpg-shared \
 	--disable-png-shared \
-	--disable-tif-shared
+	--disable-tif-shared \
+	--disable-webp-shared
 
 HOST_SDL_IMAGE_DEPENDENCIES = host-libjpeg host-libpng host-sdl