Add a new layer meta-gsj to meta-quanta.

Tested: This commit included the basic machine config
        and package group setting for project GSJ.
        And it could build successfully with meta-nuvoton fix
        (https://gerrit.openbmc-project.xyz/#/c/openbmc/openbmc/+/17719/).
        But the built image cannot run on EVB now,
        it is because the image generate script still not ready yet.

(From meta-quanta rev: e08538d3df34128ef92c0593c1556931e62c614a)

Change-Id: I2724915dd674bbce0db16a3714bc50cf8993f9b9
Signed-off-by: FranHsu <Fran.Hsu@quantatw.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-quanta/meta-gsj/conf/conf-notes.txt b/meta-quanta/meta-gsj/conf/conf-notes.txt
new file mode 100644
index 0000000..9b3c01a
--- /dev/null
+++ b/meta-quanta/meta-gsj/conf/conf-notes.txt
@@ -0,0 +1,2 @@
+Common targets are:
+     obmc-phosphor-image