add first boot set mac script

phosphor-misc will use the meson build system - establish the initial
structure.  Copy the first boot set mac script and systemd unit from
meta-openpower.

Change-Id: I1f7ebbb6b5230aa97b28e9a46ac721925b95a75a
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/firstboot/first-boot-set-mac@.service b/firstboot/first-boot-set-mac@.service
new file mode 100644
index 0000000..3ff5fc1
--- /dev/null
+++ b/firstboot/first-boot-set-mac@.service
@@ -0,0 +1,17 @@
+[Unit]
+Description=Init BMC MAC address for NIC %I
+ConditionPathExists=!/var/lib/first-boot-set-mac/%i
+Wants=mapper-wait@-xyz-openbmc_project-inventory.service
+After=mapper-wait@-xyz-openbmc_project-inventory.service
+Wants=mapper-wait@-xyz-openbmc_project-network-%i.service
+After=mapper-wait@-xyz-openbmc_project-network-%i.service
+Wants=op-vpd-parser.service
+After=op-vpd-parser.service
+
+[Service]
+ExecStart=/usr/bin/first-boot-set-mac.sh %i
+Type=oneshot
+RemainAfterExit=Yes
+
+[Install]
+WantedBy=multi-user.target