openpower-host-ipmi-oem: use c++17
openpower-host-ipmi-oem: use c++17

Update configure.ac to choose the c++17 standard

Change-Id: Iba00344818ab24d6bc4ffe6b1abc2aabbd17bc4c
Signed-off-by: Vernon Mauery <4fbc0e9805d36da7c621cd4d73f3eb0d5b12b5f3@linux.intel.com>

openbmc/openpower-host-ipmi-oem,openbmc/openpower-host-ipmi-oem,openbmc/openpower-host-ipmi-oem