Cleanup of errors related to ipmi_si [1/2]

Prevent running ipmi barclamp on VMs
Prevent running unbmc.sh on VMs during admin install
Fix cosmetic issues with modprobe of ipmi_si failures on centos/redhat


 chef/cookbooks/ipmi/providers/bmc_command.rb |    2 +-
 chef/cookbooks/ipmi/providers/lan_set.rb     |    2 +-
 chef/cookbooks/ipmi/providers/load.rb        |   10 +---------
 chef/cookbooks/ipmi/providers/unload.rb      |   10 +---------
 chef/cookbooks/ipmi/providers/user_set.rb    |    5 +----
 chef/cookbooks/ipmi/recipes/ipmi-discover.rb |   20 ++++++++++++++------
 6 files changed, 19 insertions(+), 30 deletions(-)

Crowbar-Pull-ID: 6d14733eb8ebf8e528649f2c05512e135ae91f0b

Crowbar-Release: pebbles