LU-15898 tests: Move sanity/115 & 802a to conf-sanity

LU-15898 tests: Move sanity/115 & 802a to conf-sanity

sanity/115 and sanity/802a reformats filesystem making
the whole sanity slow. These two tests are moved under
conf-sanity.

sanity/115 is now conf-sanity/114
sanity/802a is now conf-sanity/802a

This patch also replaces trap with stack_trap for
conf-sanity/134a and adds 133 to EXCEPT_SLOW list
under conf-sanity. It removes test 115 from
EXCEPT_SLOW list under sanity.

Test-Parameters: trivial env=SLOW=yes,ONLY="114 115" testlist=conf-sanity
Test-Parameters: trivial fstype=zfs env=ONLY=802a testlist=conf-sanity
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Change-Id: Iacb5aa8c5535a30669af3f94be97b68ee8688ccf
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/47469
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>