meta-facebook: yosemite4: add BMC compatible string

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I9a3f48392b59a230351be6b857fcc0c1314a35a4
diff --git a/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf b/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf
index 690e113..635c278 100644
--- a/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf
+++ b/meta-facebook/meta-yosemite4/conf/machine/yosemite4.conf
@@ -6,6 +6,8 @@
 SPL_BINARY = "spl/u-boot-spl.bin"
 SOCSEC_SIGN_ENABLE = "0"
 
+OBMC_COMPATIBLE_NAMES = "com.meta.Hardware.BMC.Model.Yosemite4"
+
 require conf/distro/include/phosphor-static-norootfs.inc
 require conf/distro/include/pldm.inc
 require conf/machine/include/facebook-compute-multihost.inc