Update retroarch-android.ra

Author: inactive123

recipes/android/retroarch-android.ra

@@ -1,6 +1,7 @@
 retroarch retroarch https://github.com/libretro/Retroarch.git PROJECT YES .
 overlays overlays https://github.com/libretro/common-overlays.git ASSETS YES retroarch/media
 shaders shaders_glsl https://github.com/libretro/glsl-shaders.git ASSETS YES retroarch/media
+shaders shaders_slang https://github.com/libretro/slang-shaders.git ASSETS YES retroarch/media
 autoconfig autoconfig https://github.com/libretro/retroarch-joypad-autoconfig.git ASSETS YES retroarch/media
 assets assets https://github.com/libretro/retroarch-assets.git ASSETS YES retroarch/media
 libretrodb libretrodb https://github.com/libretro/libretro-database.git ASSETS YES retroarch/media