Merge "Fix the problem that the switch should gray out when preference disabled." into sc-dev am: ef65dc43 am: 459c478d am: d5ac2d7d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15109464

Change-Id: I0e3d1d5f3f44e50bf57fe34ee07f6506e50e311a