Revert "[PK settings] Remove metrics."

1. This reverts commit bdf89255a0815936b07caba8218715ae6f863dd7.
2. Modify ACTION_USE_SPECIFIC_KEYBOARD to log vendor and product id.

Reason for revert: <Add metrics>
Test: atest

Change-Id: I187b990eec7dd0c0009f6c695f595d95420cb4ab
25 files changed