floss: metrics: add profile connection metrics handlers

Introduce two more metrics handlers in Floss topshim and gd/metrics to
handle the profile connection attempts and state updates.

BUG: 240781725
Tag: #floss
Test: emerge-${BOARD} floss
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines

Change-Id: Ic7c1a179b0fb3d01e33d35f9de98a10300096345