[automerger skipped] DO NOT MERGE: Add constant for Output Switcher to start...

[automerger skipped] DO NOT MERGE: Add constant for Output Switcher to start Bluetooth paring page am: 4dcbd863 -s ours

am skip reason: skipped by user timhypeng

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13115316

Change-Id: I4845496e814af97ad047596954b2c2027d8ae11c