meta-witherspoon: Disable unnecessary hardware features

(From meta-ibm rev: 3beaf3a6fad2bcd231eccc7c4a602c3627fac1de)

Change-Id: Ifb877562ada116ce4012a7e314600e975c5e36c2
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-witherspoon/conf/distro/openbmc-witherspoon.conf b/meta-ibm/meta-witherspoon/conf/distro/openbmc-witherspoon.conf
index 1ccdeb3..76be4ae 100644
--- a/meta-ibm/meta-witherspoon/conf/distro/openbmc-witherspoon.conf
+++ b/meta-ibm/meta-witherspoon/conf/distro/openbmc-witherspoon.conf
@@ -3,3 +3,4 @@
 require conf/distro/include/phosphor-tiny.inc
 require conf/distro/include/openpower-mrw.inc
 require conf/distro/include/openpower-ubi.inc
+require conf/distro/include/phosphor-isolation.inc