Update NotificationChannelSettings Preferences in place to prevent re-layout.

(cherry picked from commit b409b640451cfc58fb529659b80cd872ed717095)

Fixes: 110093185
Test: ChannelListPreferenceControllerTest
Change-Id: If6acf305c44085e502a3304ea57e409ce049b40f
Merged-In: If6acf305c44085e502a3304ea57e409ce049b40f
3 files changed