powerstats: add common data providers in gs common

Bug: 206576142
Test: dumpsys android.hardware.power.stats.IPowerStats/default
Change-Id: Iee66356150a8bdfcd1e0b3fe8b8d5ec9f601f543
Signed-off-by: Darren Hsu <darrenhsu@google.com>
10 files changed
tree: 825827eeac1bf51caebcb8d7a0ee2b1e5d39e0be
  1. powerstats/
  2. default-talkback-permissions.xml
  3. device.mk