Merge "SystemUI: Hide the mobile settings icon in guest mode" into main am: 72ea9148

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3427990



Change-Id: I335626bec3266a7101ad01f375b0ebb63200499e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>