fsp2: Append -layer to bb file collection name

This seems to be the upstream convention.  Update to match.

Change-Id: Ie56cfd4cce1d1d49a3edeaf734fcfbbc665a55c8
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-openbmc-bsp/meta-ibm/meta-fsp2/conf/layer.conf b/meta-openbmc-bsp/meta-ibm/meta-fsp2/conf/layer.conf
index 062415b..11d9b6e 100644
--- a/meta-openbmc-bsp/meta-ibm/meta-fsp2/conf/layer.conf
+++ b/meta-openbmc-bsp/meta-ibm/meta-fsp2/conf/layer.conf
@@ -4,6 +4,6 @@
 BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
             ${LAYERDIR}/recipes-*/*/*.bbappend"
 
-BBFILE_PATTERN_fsp2 = "^${LAYERDIR}"
-BBFILE_COLLECTIONS += "fsp2"
+BBFILE_PATTERN_fsp2-layer = "^${LAYERDIR}"
+BBFILE_COLLECTIONS += "fsp2-layer"
 LAYERVERSION_fsp2 = "1"