Merge remote-tracking branch 'remotes/philmd-gitlab/tags/edk2-next-20200914' into staging

EDK2 firmware: Adopt the edk2-stable202008 release

Note from Laszlo Ersek [1] while addressing LP#1852196 [2]:

Consume the following upstream edk2 releases:

  https://github.com/tianocore/edk2/releases/tag/edk2-stable201908
  https://github.com/tianocore/edk2/releases/tag/edk2-stable201911
  https://github.com/tianocore/edk2/releases/tag/edk2-stable202002
  https://github.com/tianocore/edk2/releases/tag/edk2-stable202005
  https://github.com/tianocore/edk2/releases/tag/edk2-stable202008

Worth mentioning (in random order):

- various CVE fixes (see [2] and shortlog)
- OpenSSL-1.1.1g
- UEFI HTTPS Boot for ARM/AARCH64
- TPM2 for ARM/AARCH64
- VCPU hotplug with SMI
- support for Linux v5.7+ initrd and mixed mode loading
- Fusion-MPT SCSI driver in OVMF
- VMware PVSCSI driver in OVMF
- PXEv4 / PXEv6 boot possible to disable on the QEMU command line
- SEV-ES support

The IA32 and X64 binaries are now smaller -- the reason is that Laszlo
built them with DevToolSet 9 (gcc-9) on RHEL7, and so this is the first
time they've undergone LTO (with the GCC5 edk2 toolchain settings).

CI jobs results:
  https://gitlab.com/philmd/qemu/-/pipelines/189394120
  https://travis-ci.org/github/philmd/qemu/builds/726842542
  https://app.shippable.com/github/philmd/qemu/runs/866/summary/console

[1] https://www.mail-archive.com/qemu-devel@nongnu.org/msg738173.html
[2] https://bugs.launchpad.net/qemu/+bug/1852196



# gpg: Signature made Mon 14 Sep 2020 08:15:37 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/edk2-next-20200914:
  tests: acpi: update "virt/SSDT.memhp" for edk2-stable202008
  pc-bios: update the README file with edk2-stable202008 information
  pc-bios: refresh edk2 build artifacts for edk2-stable202008
  roms/Makefile.edk2: enable new ARM/AARCH64 flags up to edk2-stable202008
  roms/Makefile.edk2: complete replacing TPM2*_ENABLE macros
  roms/edk2: update submodule from edk2-stable201905 to edk2-stable202008
  tests: acpi: tolerate "virt/SSDT.memhp" mismatch temporarily
  roms/Makefile.edk2: prepare for replacing TPM2*_ENABLE macros
  roms/efirom, tests/uefi-test-tools: update edk2's own submodules first
  Makefile: remove obsolete edk2 exception from "clean" rule

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>