Make tapdisk datapath use tapdisk3 rather than blkback
Make tapdisk datapath use tapdisk3 rather than blkback

Until now, the tapdisk datapath was using the "traditional" Clearwater
datapath (blkfront-blkback-blktap2-tapdisk). This patch makes use of
Creedence datapath (blkfront-tapdisk3).

Signed-off-by: Felipe Franciosi <b41e9b8dd61267c8eb3db48acfda473f53d9964b@paradoxo.org>

xapi-project/ffs,franciozzy/ffs,djs55/ffs,robertbreker/ffs