add mihawk support to build-setup.sh

Change-Id: I7b6b5e18c632466aa8dc8c26f87cad6ffd3ce1ca
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/build-setup.sh b/build-setup.sh
index 302820b..da691e3 100755
--- a/build-setup.sh
+++ b/build-setup.sh
@@ -34,7 +34,7 @@
 #                     Default: "latest"
 #  target             The target we aim to build:
 #                     evb-ast2500|palmetto|qemu|qemux86-64
-#                     romulus|s2600wf|witherspoon|zaius|tiogapass|gsj
+#                     romulus|s2600wf|witherspoon|zaius|tiogapass|gsj|mihawk
 #                     Default: "qemu"
 #  no_tar             Set to true if you do not want the debug tar built
 #                     Default: "false"
@@ -132,6 +132,10 @@
     LAYER_DIR="meta-ibm/meta-witherspoon"
     MACHINE="swift"
     ;;
+  mihawk)
+    LAYER_DIR="meta-ibm/meta-witherspoon"
+    MACHINE="mihawk"
+    ;;
   witherspoon)
     LAYER_DIR="meta-ibm/meta-witherspoon"
     ;;