Catch sdbusplus exceptions in IPMI net

Missing the correct exception was causing issues with setting the IPV4
address

Change-Id: Ieaaacfcbaec82a0c3b110889817a7ceb9cda8d3c
Signed-off-by: Dave Cobbley <david.j.cobbley@linux.intel.com>
Signed-off-by: Yong Li <yong.b.li@linux.intel.com>
2 files changed