Register metadata listener when bonding

Register metadata listener in bonded state could create a race condition
between the Wear OS setup wizard and the companion manager.
Move to bonding state instead to make sure the listener is ready before
any matadata change happens.

Bug: 263323082
Bug: 261861278
Test: atest CompanionDeviceManagerTest
Change-Id: I2a641c1df696e6d44d23a21f348945c44cd563f6
(cherry picked from commit 04f2498c551536cdd525955b4c77cc7a6183def3)