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/meson.build b/firstboot/meson.build
new file mode 100644
index 0000000..d2d09d7
--- /dev/null
+++ b/firstboot/meson.build
@@ -0,0 +1,17 @@
+set_mac = dependency('systemd', required: get_option('first-boot-set-mac'))
+
+if set_mac.found()
+    install_data(
+        'first-boot-set-mac.sh',
+        install_mode: 'rwxr-xr-x',
+        install_dir: get_option('bindir'),
+    )
+
+    configure_file(
+        input: 'first-boot-set-mac@.service',
+        output: 'first-boot-set-mac@.service',
+        copy: true,
+        install_dir:
+            set_mac.get_pkgconfig_variable('systemdsystemunitdir'),
+    )
+endif