LU-8576 test: Fix hard-coded NETTYPE in test-framework.sh

LU-8576 test: Fix hard-coded NETTYPE in test-framework.sh

In test-frameowrk.sh, h2o2ib() and h2tcp() hard-codes
the network type value to o2ib or tcp respectively.

With this patch, h2nettype() is defined which replaces
h2o2ib(), h2tcp(), h2ptl() and h2elan(). Function
h2nettype() uses value of NETTYPE parameter passed
from user instead of any hard-coded value. With this patch,
NETTYPE value is used as network name instead of network type.

Test-Parameters: trivial testlist=conf-sanity, sanity, sanity-sec
Change-Id: If0fe16a1f6aade4d7f784243c75f70764280ea88
Signed-off-by: Sonia Sharma <sonia.sharma@intel.com>
Reviewed-on: https://review.whamcloud.com/27027
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>