Revision 1554240

- update to 5.5.8
  * drop merged patches
- drm/i915: Actually emit the await_start
- block, bfq: get a ref to a group when adding it to a service tree
- block, bfq: remove ifdefs from around gets/puts of bfq groups
- block, bfq: extend incomplete name of field on_st
- block, bfq: get extra ref to prevent a queue from being freed during
  a group move
- block, bfq: do not insert oom queue into position tree
- rtw88: disable TX-AMSDU on 2.4G band
- ASoC: intel/skl/hda - export number of digital microphones via control
  components
- x86/ioperm: Add new paravirt function update_io_bitmap()
-ahci: Add Intel Comet Lake H RAID PCI ID