system_api: add wake-to-scan frequency property name

Add wake-to-scan frequency name to service constants.
This property will be used to allow the wake-to-scan
timer frequency in shill.

BUG=chrome-os-partner:32270
TEST=none.

Change-Id: I7eb88528c688232fe5b1b71a5a7763169676b883
Reviewed-on: https://chromium-review.googlesource.com/231396
Tested-by: Samuel Tan <samueltan@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Samuel Tan <samueltan@chromium.org>
1 file changed
tree: f737390046ccc9aad980a627857520512017aaad
  1. constants/
  2. dbus/
  3. switches/
  4. OWNERS
  5. README
  6. system_api.gyp
  7. system_api.pc