LU-10447 tests: replace $SET/$GETSTRIPE for misc tests

LU-10447 tests: replace $SET/$GETSTRIPE for misc tests

$SETSTRIPE and $GETSTRIPE were needed when we used the
standalone 'lstripe' utility. 'lstripe' hasn't been used
for years and we need to clean up all remnants of it.

Replace all instances of $SETSTRIPE with '$LFS setstripe'
and $GETSTRIPE with '$LFS getstripe' in the recovery-small,
sanity-hsm, sanity-lfsck, and sanity-scrub test suites.

Test-Parameters: trivial testlist=recovery-small,sanity-hsm
Test-Parameters: testlist=sanity-scrub
Signed-off-by: James Nunez <jnunez@whamcloud.com>
Change-Id: I3ac87e0c48f33ac40cd8631f3d403fed4090adc5
Reviewed-on: https://review.whamcloud.com/33919
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Emoly Liu <emoly@whamcloud.com>