Add collapsing toolbar to Notification history page

On Android S, collapsing toolbar will be shown in each subsetting
pages. Notification history page doesn't have collapsing toolbar since
it's not a subsetting page. We changed the base activity for Notificatio
history page to eable the feature.

Bug: 178678690
Test: visual verified
1) Settings -> Notifications -> Notification history
2) Check if the collapsig toolbar is existig in this page

Change-Id: I51d66b64dc479bbe14274301c75da67600116772