Merge "Allow libsnapshot to link to bsdiff." am: 0ed284a7e0 am: a6356c579a am: 15b9e810e3 am: 28ae6ec3e7

Original change: https://android-review.googlesource.com/c/platform/external/bsdiff/+/1392522

Change-Id: I1d5ec876e2e3a68aa9ba799a37c24c325371eb30