meta-amd: prep for amd meta layer refactoring

Code refactoring to support CRB's bring-up.

Configuration files "nohost" and "withhost" variants
introduced to support various stages of  bring-up in
AMD CRBs.

Change-Id: Id52ac68edf365e6623bd71992fdd6d9fc8a3adf5
Signed-off-by: Jayanth Othayoth <ojayanth@gmail.com>
diff --git a/meta-amd/meta-daytonax/conf/machine/daytonax.conf b/meta-amd/meta-daytonax/conf/machine/daytonax.conf
index 59ec62b..3de37df 100644
--- a/meta-amd/meta-daytonax/conf/machine/daytonax.conf
+++ b/meta-amd/meta-daytonax/conf/machine/daytonax.conf
@@ -6,7 +6,7 @@
 
 require conf/machine/include/ast2500.inc
 require conf/machine/include/obmc-bsp-common.inc
-require conf/machine/include/amd.inc
+require conf/machine/include/amd-withhost.inc
 
 SERIAL_CONSOLES = "115200;ttyS4"