v1.20.1
[mii] Add bit-bashing interface
[iscsi] Fix iBFT when no explicit initiator name setting exists
[pci] Add support for PCI MSI-X interrupts
[golan] Fix address-of-pointer bug for multicast attach/detach
[linux] Impose receive quota on tap driver
[snp] Set EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit as per UEFI spec
[legal] Relicense files under GPL2_OR_LATER_OR_UBDL
[efi] Do not attempt EFI_USB_IO_PROTOCOL transfers during shutdown