floss: Suspend: Merge suspend related messages into SuspendActions

No behavioral change.

Bug: 385279302
Tag: #floss
Test: mmm packages/modules/Bluetooth
Test: bluetooth_AdapterSRHealth.all_floss
Flag: EXEMPT, Floss-only change

Change-Id: Ica817500477b48c8a81433b4b958b48fb25f2954