Fix duplicate symbols error in external/squashfs-tools am: 19b288b3c8 am: cf2d6206a2 am: 6afb0f6eb7 am: d7992eadc0

Original change: https://android-review.googlesource.com/c/platform/external/squashfs-tools/+/2647919

Change-Id: I8e0c35f07a50e98e4e7cc8e98d51c6ce541774de
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>