HYD-3517 Check yum command exit code during install
HYD-3517 Check yum command exit code during install

And fail the installation if the yum command fails.

Create-Tag: v2.1.50.0
Signed-off-by: Brian J. Murrell <2a8f564cbb80211e19c0a14fed38a451599c042f@intel.com>
Change-Id: Iff237f8c7a0821ceeeaf97b00de83c2233f26455
Reviewed-on: http://review.whamcloud.com/11778
Tested-by: Jenkins
Tested-by: Chroma Test User <a0b98b2ff5154776fa24760ef410655af7a8b56c@intel.com>
Reviewed-by: Kelsey Prantis <891d505c4b8f252568785ec2b0d34b82fde8f616@intel.com>
Reviewed-by: Chris Gearing <149a3c4298d99c315fc555357d57d2940923ba5f@intel.com>

intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre