yocto-2.1: meta-yocto to meta-poky transition

With yocto-2.1, per meta-yocto/conf/layer.conf, meta-yocto is
deprecated and should be transitioned to meta-poky.

Change-Id: Ie1819c13d1741d68f130570c676b3fe274cbb6f4
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meta-phosphor/conf/bblayers.conf.sample b/meta-phosphor/conf/bblayers.conf.sample
index 2f0321f..bc651fa 100644
--- a/meta-phosphor/conf/bblayers.conf.sample
+++ b/meta-phosphor/conf/bblayers.conf.sample
@@ -7,10 +7,10 @@
 
 BBLAYERS ?= " \
   ##OEROOT##/meta \
-  ##OEROOT##/meta-yocto \
+  ##OEROOT##/meta-poky \
   ##OEROOT##/meta-phosphor \
   "
 BBLAYERS_NON_REMOVABLE ?= " \
   ##OEROOT##/meta \
-  ##OEROOT##/meta-yocto \
+  ##OEROOT##/meta-poky \
   "