hw/arm/pxa2xx: Replace hw_error() by qemu_log_mask()

hw/arm/pxa2xx: Replace hw_error() by qemu_log_mask()

hw_error() calls exit(). This a bit overkill when we can log
the accesses as unimplemented or guest error.

When fuzzing the devices, we don't want the whole process to
exit. Replace some hw_error() calls by qemu_log_mask().

Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
Message-id: 20200518140309[email protected]
Signed-off-by: Peter Maydell <[email protected]>