tests/boot_linux_console: Add a SLOW test booting Ubuntu on OrangePi PC

tests/boot_linux_console: Add a SLOW test booting Ubuntu on OrangePi PC

This test boots Ubuntu Bionic on a OrangePi PC board.

As it requires 1GB of storage, and is slow, this test is disabled
on automatic CI testing.

It is useful for workstation testing. Currently Avocado timeouts too
quickly, so we can't run userland commands.

The kernel image and DeviceTree blob are built by the Armbian
project (based on Debian):
https://www.armbian.com/orange-pi-pc/

The Ubuntu image is downloaded from:
https://dl.armbian.com/orangepipc/Bionic_current

This test can be run using:

  $ AVOCADO_ALLOW_LARGE_STORAGE=yes \
    avocado --show=app,console run -t machine:orangepi-pc \
      tests/acceptance/boot_linux_console.py
  console: U-Boot SPL 2019.04-armbian (Nov 18 2019 - 23:08:35 +0100)
  console: DRAM: 1024 MiB
  console: Failed to set core voltage! Can't set CPU frequency
  console: Trying to boot from MMC1
  console: U-Boot 2019.04-armbian (Nov 18 2019 - 23:08:35 +0100) Allwinner Technology
  console: CPU:   Allwinner H3 (SUN8I 0000)
  console: Model: Xunlong Orange Pi PC
  console: DRAM:  1 GiB
  console: MMC:   mmc@1c0f000: 0
  [...]
  console: Uncompressing Linux... done, booting the kernel.
  console: Booting Linux on physical CPU 0x0
  console: Linux version 5.3.9-sunxi (root@builder) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #19.11.3 SMP Mon Nov 18 18:49:43 CET 2019
  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
  console: CPU: div instructions available: patching division code
  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
  console: OF: fdt: Machine model: Xunlong Orange Pi PC
  [...]
  console: EXT4-fs (mmcblk0p1): mounted filesystem with writeback data mode. Opts: (null)
  console: done.
  console: Begin: Running /scripts/local-bottom ... done.
  console: Begin: Running /scripts/init-bottom ... done.
  console: systemd[1]: systemd 237 running in system mode. (...)
  console: systemd[1]: Detected architecture arm.
  console: Welcome to Ubuntu 18.04.3 LTS!
  console: systemd[1]: Set hostname to <orangepipc>.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-17-nieklinnenbank@gmail.com
[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
[NL: changed test to boot from SD card via BootROM, added check for 7z]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>