samples: move samples subsys sample to samples boards csk6 subsys

2 job 于feature/subsys_sample in 11 minute 和 50 second
状态 作业 ID 名称 覆盖率
  Ztest
已通过 #41991
zgsz-02 generic
ztest_build_only

00:06:15

已通过 #41992
zgsz-03 with-device
ztest_device_test

00:06:56