Refactor Clocks to use MessageBuffer + Logger

This change refactors the Clocks library to use Logger class which is a
wrapper around MessageBuffer. This effort removes references to the
LogBuffer outside of SystemUI core so it can be optimized.

Bug: 276475093
Fix: 280810388
Test: manual
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:5b47044aac7bf5cdce9f0eb0caa1c58b6de548a9)
Merged-In: I663b5c3dcda4f0599e824a06e0187a8bc120d9c0
Change-Id: I663b5c3dcda4f0599e824a06e0187a8bc120d9c0