meta-bletchley: phosphor-ipmi-host: skip Ipmi SoftPowerOff service

Bletchley doesn't have IPMI support, skip
xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service service

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I5a302d92cbfbaeabf921b46fe3026d48bf0ce6fb
diff --git a/meta-facebook/meta-bletchley/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend b/meta-facebook/meta-bletchley/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend
index 916dc2d..284f353 100644
--- a/meta-facebook/meta-bletchley/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend
+++ b/meta-facebook/meta-bletchley/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend
@@ -6,3 +6,8 @@
 
 # host watchdog does not support on bletchley
 RDEPENDS:${PN}:remove:bletchley = "virtual/obmc-watchdog"
+
+# bletchley doesn't have IPMI support, skip xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service
+SOFT_SVC = ""
+SOFT_TGTFMT = ""
+SOFT_FMT = ""