[3/3] NetD : Allow passing in interface names for wifi/data app restriction

CYAN-3976
CRACKLING-834

This is a simplification and adpatation for oreo of:
https://review.lineageos.org/#/c/LineageOS/android_system_netd/+/144246/
by wangjing <wangjing@codeaurora.org>

Change-Id: I085434d70dfe00e9c27b821661fff5076d57e930