Update battery saver column to PrimarySwitchPreference (1/2)

 - Change battery saver entry column to new design
 Screenshot: https://screenshot.googleplex.com/9a9Gxm3McJVmLkD.png

Bug: 177407113
Test: make RunSettingsRoboTests -j40
Change-Id: I513bc4371518645f4e725df27f2cb978cec284e8
3 files changed