Merge "Expose the netd mock in CSTest to allow verifying calls on it" into main am: 4dec273ab4

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2775658

Change-Id: I7463e8b960aba0346eeaec399d3c31dc7a612a2c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>