phosphor-software-manager: Create a new mmc bbclass

Add a bbclass for the mmc configuration option.

Change-Id: Ia3ef06d7636f8df1aa1029b8edd91b7f4eb78201
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/classes/phosphor-software-manager-mmc.bbclass b/classes/phosphor-software-manager-mmc.bbclass
new file mode 100644
index 0000000..955e65e
--- /dev/null
+++ b/classes/phosphor-software-manager-mmc.bbclass
@@ -0,0 +1,7 @@
+# eMMC-specific configuration for the phosphor-manager-software package
+
+PACKAGECONFIG_append = " mmc_layout"
+
+EXTRA_OEMESON += "-Dactive-bmc-max-allowed=2"
+EXTRA_OEMESON += "-Dmedia-dir='/media'"
+