Support ICMP tests with larger packet size am: 1c914cedf8 am: 625976f7a4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/22965037

Change-Id: Ida44c9865c96a0d0b564cd95959bd50825ca0e89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>