LU-11930 llite: Restore pio flags

LU-11930 llite: Restore pio flags

flags could never be removed from the LL_SBI_FLAGS list,
since the order is dependent on actual bits in the
structure.

Test-Parameters: trivial
Change-Id: I601ad0df478b17075658706c830f4a615c418104
Fixes: 2b0a34fe43bf ("LU-11825 clio: Remove pio feature")
Signed-off-by: Oleg Drokin <green@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/34187
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>