WifiStack: Turn off proguard optimization of proto classes

Move all generated proto classes to a separate
com.android.server.wifi.proto package. Add a proguard rule to prevent
proguard from stripping out these classes/fields.

Bug: 143931842
Test: atest com.android.server.wifi
Test: Verified that 'adb shell dumpsys wifi' no longer crashes.
Change-Id: I5c15ef911c3003cd34ab22efbd8ebdb4f53a051a
45 files changed
tree: 34bbc06bdfca936280184b9eacfc07f36266d721
  1. service/
  2. PREUPLOAD.cfg