Add size check for IP config

Flag: EXEMPT bugfix
Bug: 349550024
Test: atest com.android.server.wifi
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:57e446cfdc95fce61be986d98ffc81e8bb70504a)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:68e46661e2deb32b41527a02030cd928bee07409)
Merged-In: I761dbb38ffa2e4dcebad2a6abb8d37d45a3b1fd8
Change-Id: I761dbb38ffa2e4dcebad2a6abb8d37d45a3b1fd8
2 files changed