Add config value to restrict channel for ACS

This config allows the device to select one of the specified
channels when ACS is enabled.

Bug: 116839455
Test: no build errors
Change-Id: I2886d1f0059ab9ed809f3896708521fd6d516015
(cherry-picked from 7946d0d33d6d1c796f3ff715d61af3297e142712)
2 files changed