Add mihawk platform to meta-ibm

The contents of this up-stream include the following items
1.Basic function
2.Led settings
3.GPIO monitor (id button and power supply)
4.Linux dts patch.

Change-Id: Id0d4fd06ed9a9d4abde6c2a68b0a709fde343f60
Signed-off-by: Ben Pai <Ben_Pai@wistron.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-witherspoon/recipes-phosphor/images/obmc-phosphor-image.bbappend b/meta-witherspoon/recipes-phosphor/images/obmc-phosphor-image.bbappend
index ab45d55..199d2c4 100644
--- a/meta-witherspoon/recipes-phosphor/images/obmc-phosphor-image.bbappend
+++ b/meta-witherspoon/recipes-phosphor/images/obmc-phosphor-image.bbappend
@@ -1 +1,2 @@
 OBMC_IMAGE_EXTRA_INSTALL_append_ibm-ac-server = " mboxd max31785-msl phosphor-msl-verify liberation-fonts uart-render-controller first-boot-set-mac first-boot-set-hostname"
+OBMC_IMAGE_EXTRA_INSTALL_append_mihawk = " mboxd liberation-fonts uart-render-controller"