tests/boot_linux_console: Add a SD card test for the OrangePi PC board

tests/boot_linux_console: Add a SD card test for the OrangePi PC board

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

The SD image is from the kernelci.org project:
https://kernelci.org/faq/#the-code

If ARM is a target being built, "make check-acceptance" will
automatically include this test by the use of the "arch:arm" tags.

Alternatively, this test can be run using:

  $ avocado --show=console run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
  console: Uncompressing Linux... done, booting the kernel.
  console: Booting Linux on physical CPU 0x0
  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
  [...]
  console: sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
  console: sunxi-mmc 1c0f000.mmc: Linked as a consumer to regulator.2
  console: sunxi-mmc 1c0f000.mmc: Got CD GPIO
  console: ledtrig-cpu: registered to indicate activity on CPUs
  console: hidraw: raw HID events driver (C) Jiri Kosina
  console: usbcore: registered new interface driver usbhid
  console: usbhid: USB HID core driver
  console: Initializing XFRM netlink socket
  console: sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
  console: NET: Registered protocol family 10
  console: mmc0: host does not support reading read-only switch, assuming write-enable
  console: mmc0: Problem switching card into high-speed mode!
  console: mmc0: new SD card at address 4567
  console: mmcblk0: mmc0:4567 QEMU! 60.0 MiB
  [...]
  console: EXT4-fs (mmcblk0): mounting ext2 file system using the ext4 subsystem
  console: EXT4-fs (mmcblk0): mounted filesystem without journal. Opts: (null)
  console: VFS: Mounted root (ext2 filesystem) on device 179:0.
  console: Run /sbin/init as init process
  console: EXT4-fs (mmcblk0): re-mounted. Opts: block_validity,barrier,user_xattr,acl
  console: Starting syslogd: OK
  console: Starting klogd: OK
  console: Populating /dev using udev: udevd[203]: starting version 3.2.7
  console: /bin/sh: can't access tty; job control turned off
  console: cat /proc/partitions
  console: / # cat /proc/partitions
  console: major minor  #blocks  name
  console: 1        0       4096 ram0
  console: 1        1       4096 ram1
  console: 1        2       4096 ram2
  console: 1        3       4096 ram3
  console: 179        0      61440 mmcblk0
  console: reboot
  console: / # reboot
  console: umount: devtmpfs busy - remounted read-only
  console: EXT4-fs (mmcblk0): re-mounted. Opts: (null)
  console: The system is going down NOW!
  console: Sent SIGTERM to all processes
  console: Sent SIGKILL to all processes
  console: Requesting system reboot
  console: reboot: Restarting system
  JOB TIME   : 68.64 s

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: 20200311221854.30370-16-nieklinnenbank@gmail.com
[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
[NL: extend test with ethernet device checks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>