Fix duplicate symbols error in external/squashfs-tools am: 19b288b3c8 am: cf2d6206a2 am: 6afb0f6eb7 am: d7992eadc0 am: 9e1de868a8

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

Change-Id: I9a003ea62d821a4c8348d63a9776711a6c8f9893
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>