openpower-software-manager: Add mmc support

Add support for the mmc configuration option based on the
phosphor-mmc distro feature.

Change-Id: Icc15c9629afedf9d4d55bafd522fd1c9f7d1bc09
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/classes/openpower-software-manager-mmc.bbclass b/classes/openpower-software-manager-mmc.bbclass
new file mode 100644
index 0000000..808e689
--- /dev/null
+++ b/classes/openpower-software-manager-mmc.bbclass
@@ -0,0 +1,6 @@
+PACKAGECONFIG_append = " mmc_layout"
+
+SYSTEMD_SERVICE_${PN} += " \
+    obmc-flash-bios-init.service \
+    obmc-flash-bios-patch.service \
+"