Add quick firmware boot tests (less than 1sec) for the
B160L (32-bit) and C3700 (64-bit) HPPA machines:
$ make check-functional-hppa
1/4 qemu:func-quick+func-hppa / func-hppa-empty_cpu_model OK 0.13s 1
subtests passed
2/4 qemu:func-quick+func-hppa / func-hppa-version OK 0.14s 1
subtests passed
3/4 qemu:func-quick+func-hppa / func-hppa-info_usernet OK 0.22s 1
subtests passed
4/4 qemu:func-quick+func-hppa / func-hppa-hppa_seabios OK 0.22s 2
subtests passed
Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>