Add recipes for Witherspoon VCS workaround

Create vcs-workaround machine feature p9.inc
Add new recipe vcs-pre-post.bb
Add new recipe p9-vcs-workaround.bb
Add new recipe start_host.bb
Create preferred providers
Create host control machine/distro/image feature
Add dependencies

Partially resolves openbmc/openbmc#647

Change-Id: I285cafc81afda20977fdf360ad8ad34d15e38685
Signed-off-by: Sergey Solomin <sergey.solomin@us.ibm.com>
diff --git a/meta-phosphor/conf/distro/openbmc-phosphor.conf b/meta-phosphor/conf/distro/openbmc-phosphor.conf
index 22b6bc6..2355dca 100644
--- a/meta-phosphor/conf/distro/openbmc-phosphor.conf
+++ b/meta-phosphor/conf/distro/openbmc-phosphor.conf
@@ -31,6 +31,7 @@
         obmc-host-ipmi \
         obmc-mrw \
         obmc-logging-mgmt \
+        obmc-host-ctl \
         avahi \
         ${DISTRO_FEATURES_LIBC} \
         "