[DO NOT MERGE]Fix the inconsistent alignment of the main switch preference. am: 0e8aff72

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19357050



Change-Id: Icad14e69938e939dd988a68f41284b8a049476eb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>