meta-romulus: Add CPLD workaround

Romulus power on scripts requires a workaround to trigger CPLD to give
pgood signal after vcs_workaround.
Add this as cpld_trigger service that runs after vcs_workaround and
before obmc-host-start-pre.

Change-Id: I0723bad38a5832f0bb2a8776129885308a8e644a
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/conf/machine/romulus.conf b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/conf/machine/romulus.conf
index ef39de9..ae1e644 100644
--- a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/conf/machine/romulus.conf
+++ b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/conf/machine/romulus.conf
@@ -5,6 +5,9 @@
 
 OBMC_MACHINE_FEATURES += "obmc-mrw"
 
+PREFERRED_PROVIDER_virtual/p9-vcs-workaround = 'cpld-trigger'
+
 require conf/machine/include/ast2500.inc
 require conf/machine/include/obmc-bsp-common.inc
 require conf/machine/include/ibm.inc
+require conf/machine/include/p9.inc
\ No newline at end of file