Re-enable LTO for Linux

Using the tested method of only enabling it for core and video_core.

Clang is skipped, because Clang.

.ci/scripts/linux/docker.sh

@@ -22,6 +22,7 @@ cmake .. \
       -DUSE_DISCORD_PRESENCE=ON \
       -DYUZU_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"} \
       -DYUZU_USE_BUNDLED_FFMPEG=ON \
+      -DYUZU_ENABLE_LTO=ON \
       -GNinja
 
 ninja