fw-api: CL 23191762 - update fw common interface files

HTT stats: report FW CoDel drop, no-drop counters
Define HTT stats TLVs for reporting how many times the FWs CoDel latency-control logic did / didnt choose to drop the head MSDU from a CoDel-enabled MSDU queue following completion of a CoDel latency stats collection window.These drop + no-drop stats are defined per service class and per MSDU queue, though it is expected that the FW will only support per-queue CoDel stats in debug build.

Change-Id: I9cb45834f3429fc7b807bfb031d7bb2cd7f0d5ee
CRs-Fixed: 2262693