[LSC] Add LOCAL_LICENSE_KINDS to external/iperf3 am: 0dad6508a8 am: bbb51e9de0 am: e6e0a5d033 am: e15d5e7980

Original change: https://android-review.googlesource.com/c/platform/external/iperf3/+/1588598

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ifa72eb65103158fe54ada846992a049e83141efd