Introducing meta-aspeed

OE BSP layer supporting Aspeed SOCs for Phosphor.
diff --git a/conf/layer.conf b/conf/layer.conf
new file mode 100644
index 0000000..cc0460a
--- /dev/null
+++ b/conf/layer.conf
@@ -0,0 +1,5 @@
+# We have a conf and classes directory, add to BBPATH
+BBPATH .= ":${LAYERDIR}"
+
+BBFILE_COLLECTIONS += "aspeed"
+BBFILE_PATTERN_aspeed = ""