meta-amd: fix compilation errors with latest Yocto

Make the following changes to fix compilation errors:
- add honister to the LAYERSERIES_COMPAT variable,
- increase CONF_VERSION to 2,
- use new bitbake override syntax

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: I971f0f0f7110e0350994ced151ca429444885056
diff --git a/meta-amd/conf/layer.conf b/meta-amd/conf/layer.conf
index 7fc59b9..db636c1 100644
--- a/meta-amd/conf/layer.conf
+++ b/meta-amd/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "amd-layer"
 BBFILE_PATTERN_amd-layer = "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_amd-layer = "hardknott"
+LAYERSERIES_COMPAT_amd-layer = "hardknott honister"