[automerger skipped] Fix a bug when getting a gzip header extra field with...

[automerger skipped] Fix a bug when getting a gzip header extra field with inflate(). am: cc6c2db4 am: 1884a50e -s ours am: d9dcb7b6 -s ours

am skip reason: skipped by user sadafebrahimi

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/zlib/+/20550758



Change-Id: Id828a02bad55ec87c9014b47df1549d4b5c8e322
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>