LU-14385 tests: verify lfs setstripe comp-flags and flags options

LU-14385 tests: verify lfs setstripe comp-flags and flags options

This patch adds more test cases to verify lfs setstripe
--comp-flags|--component-flags and --flags options.

Lustre-change: https://review.whamcloud.com/41423
Lustre-commit: 4b40d2bd165308457c033d468961a2e9347baf23

Test-Parameters: trivial testlist=sanity-flr env=ONLY=0
Change-Id: Ie09089ceb65372fdf4e3b50df3771c9a355210cc
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/46263
Tested-by: Maloo <maloo@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>