Merge "Use java BpfMap in BpfNetMaps#setChildChain" am: bccf9df50e am: 953eb9ed54 am: c6cb08feb2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2131752

Change-Id: I2735f6700985bcd547f569753356625200289463
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>