meta-quanta: olympus-nuvoton: binding KCS to specify device

The Olympus-nuvoton commuicated with BIOS use KCS channel 1
Setting obmc-host-ipmi-hw use kcs protocol binding KCS1 device
in Olympus-nuvoton

(From meta-quanta rev: 1d11afbf135af12fbb7dd489ed529df7f3a08e31)

Change-Id: If4701303bb2d3ddc6259ba49d905f7a6621b8812
Signed-off-by: Samuel Jiang <Samuel.Jiang@quantatw.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-quanta/meta-olympus-nuvoton/conf/machine/olympus-nuvoton.conf b/meta-quanta/meta-olympus-nuvoton/conf/machine/olympus-nuvoton.conf
index f13b5c5..ac3c128 100644
--- a/meta-quanta/meta-olympus-nuvoton/conf/machine/olympus-nuvoton.conf
+++ b/meta-quanta/meta-olympus-nuvoton/conf/machine/olympus-nuvoton.conf
@@ -25,3 +25,5 @@
         obmc-chassis-state-mgmt \
         obmc-bmc-state-mgmt \
         "
+
+PREFERRED_PROVIDER_virtual/obmc-host-ipmi-hw = "phosphor-ipmi-kcs"