Initial Witherspoon layer

Witherspoon is an IBM branded OpenPOWER system aimed at the HPC
market.

It should be noted that this doesn't boot cleanly with the current
4.6 branch.

Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/conf/machine/witherspoon.conf b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/conf/machine/witherspoon.conf
new file mode 100644
index 0000000..19ada2a
--- /dev/null
+++ b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/conf/machine/witherspoon.conf
@@ -0,0 +1,8 @@
+KMACHINE = "aspeed"
+KERNEL_DEVICETREE = "${KMACHINE}-bmc-opp-${MACHINE}.dtb"
+
+UBOOT_MACHINE = "witherspoon_bmc_config"
+
+require conf/machine/include/ast2500.inc
+require conf/machine/include/obmc-bsp-common.inc
+require conf/machine/include/ibm.inc