Freeze netd_aidl_interface V6 am: 25b6157df8 am: 6ea87b3a16 am: 50402af65f

Original change: https://android-review.googlesource.com/c/platform/system/netd/+/1659937

Change-Id: I8fd2cd6d8954df99f8ac2b1996f0454d32aa1c55