Merge "Define a constant as stall evaluation interval for testing" am: d6ed8de986 am: fdddb324a9 am: 87de29411a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/1686028

Change-Id: I3d4128d080f374dc722a1fa49108c63ba6ea0659