meta*: Add LAYERSERIES_COMPAT and LAYERSERIES_CORENAMES markup to layer.conf

This means mismatched layers are more clearly identified to the user in
cases where compatibility has not been tested. This is perhaps not as
needed for the core repository (other than CORENAMES) but lets lead by
example.

(From OE-Core rev: cde66d5eac8e5c2821ba225dc4be4af4e0581652)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-selftest/conf/layer.conf

@@ -8,3 +8,5 @@ BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
 BBFILE_COLLECTIONS += "selftest"
 BBFILE_PATTERN_selftest = "^${LAYERDIR}/"
 BBFILE_PRIORITY_selftest = "5"
+
+LAYERSERIES_COMPAT_selftest = "rocko"

meta-skeleton/conf/layer.conf

@@ -13,3 +13,5 @@ BBFILE_PRIORITY_skeleton = "1"
 LAYERVERSION_skeleton = "1"
 
 LAYERDEPENDS_skeleton = "core"
+
+LAYERSERIES_COMPAT_skeleton = "rocko"

meta/conf/layer.conf

@@ -11,6 +11,8 @@ BBFILE_PRIORITY_core = "5"
 # cause compatibility issues with other layers
 LAYERVERSION_core = "10"
 
+LAYERSERIES_CORENAMES = "rocko"
+
 BBLAYERS_LAYERINDEX_NAME_core = "openembedded-core"
 
 # Set a variable to get to the top of the metadata location