Merge "[DK1]Add TCP polling mechanism" am: c42f1adfd5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2354202

Change-Id: I0a9e517cc192b1d31319fd4eb633712d126136a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>