pkg/checker: use Klogctl and SYSLOG_ACTION_READ_ALL from x/sys/unix
pkg/checker: use Klogctl and SYSLOG_ACTION_READ_ALL from x/sys/unix

Signed-off-by: Tobias Klauser <9249c549618448e4c699e8032ba6c7f0d7fd4b7f@distanz.ch>

hugelgupf/u-root,u-root/u-root,hugelgupf/u-root,GanShun/u-root,GanShun/u-root,hugelgupf/u-root,GanShun/u-root,hugelgupf/u-root,u-root/u-root,u-root/u-root