[AWARE] Protect string copy against buffer overflow

Fixes: 143789898
Test: (Unit) atest com.android.server.wifi
Test: ACTS ThroughputTest:test_iperf_single_ndp_aware_only_ib
Test: (VTS) atest VtsHalWifiApV1_4TargetTest
Change-Id: I5b8aa1d9a6388fe20cb7e1cd6a76d5e59e14d099
1 file changed