Package Cisco kernel modules in Cisco Churchillmono image (#19)

Summary:
These drivers will take effect once the device tree changes for Valentine FPGA are incorporated.

UT Plan:
- Ensure Churchillmono image build is successful.
- Ensure there are no error messages in dmesg.

UT:
```
root@bmc:~# dmesg | grep cisco
[   39.310915] cisco_util: loading out-of-tree module taints kernel.
```

To merge this PR after facebookexternal/openbmc.cisco#18 is merged.

X-link: facebookexternal/openbmc.cisco#19

Reviewed By: tao-ren

fbshipit-source-id: 7fecb3898263bb3c1badd3b33c7f14268dd9b20b

meta-facebook/meta-churchillmono/recipes-core/images/churchillmono-image.bb

@@ -13,4 +13,5 @@ IMAGE_INSTALL += " \
   dhcp-client \
   mterm \
   openbmc-utils \
+  cisco-wb-kmod \
   "