aspeed: add sample bblayers and local config

Add a minimal sample local.conf and bblayers.conf to enable easy build
setup:

  TEMPLATECONF=meta=aspeed/conf . oe-init-build-env

(From meta-aspeed rev: fdcd3979b7a1beaef7b832ddc74648226008317a)

Change-Id: I6d62b6e7b1ef7e874178ce52979f522e103ab332
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-aspeed/conf/bblayers.conf.sample b/meta-aspeed/conf/bblayers.conf.sample
new file mode 100644
index 0000000..e52e6be
--- /dev/null
+++ b/meta-aspeed/conf/bblayers.conf.sample
@@ -0,0 +1,7 @@
+BBPATH = "${TOPDIR}"
+BBFILES ?= ""
+
+BBLAYERS ?= " \
+  ##OEROOT##/meta \
+  ##OEROOT##/meta-aspeed \
+  "