UidOwnerValue.java - replace U32 ifindex with S32 am: 6c1c6bb582

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2219632

Change-Id: I14d249425a358e19176654b0d2738a57350d1855
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>