Wifi: DPP STA Enrollee-Responder mode

Added below functions for DPP STA Enrollee-Responder mode
1. start DPP in Enrollee-Responder mode
2. Generate DPP bootstrap URI
3. stop DPP in Enrollee-Responder mode
which internally remove the bootstrap and stop listen.

Bug: 162686712
Test: atest 8BFAZ01446 com.android.server.wifi
Test: act.py -c <dpp config file> -tc WifiDppTest
Change-Id: I6dd02eb7bd291c2a6eb13d5c3b4d81d421db41c0
8 files changed
tree: b3aeb77adc6edd3544e5c5314f4626060f489aaf
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg