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.

(From meta-ibm rev: c53430a2234917b71f29d7e61d6aea749c45a2fc)

Change-Id: Id0e47fd9197c8b2a70cbc94888bd572255664cdd
Signed-off-by: Ben Pai <Ben_Pai@wistron.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-witherspoon/recipes-phosphor/gpio/id-button.bb b/meta-ibm/meta-witherspoon/recipes-phosphor/gpio/id-button.bb
new file mode 100644
index 0000000..cdbdf77
--- /dev/null
+++ b/meta-ibm/meta-witherspoon/recipes-phosphor/gpio/id-button.bb
@@ -0,0 +1,30 @@
+SUMMARY = "ID Button pressed application"
+PR = "r1"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://${IBMBASE}/COPYING.apache-2.0;md5=34400b68072d710fecd0a2940a0d1658"
+
+inherit obmc-phosphor-systemd
+
+DEPENDS += "virtual/obmc-gpio-monitor"
+RDEPENDS_${PN} += "virtual/obmc-gpio-monitor"
+
+S = "${WORKDIR}"
+SRC_URI += "file://toggle_identify_led.sh"
+
+do_install() {
+        install -d ${D}${bindir}
+        install -m 0755 ${WORKDIR}/toggle_identify_led.sh \
+            ${D}${bindir}/toggle_identify_led.sh
+}
+
+SYSTEMD_ENVIRONMENT_FILE_${PN} +="obmc/gpio/id_button"
+
+ID_BUTTON_SERVICE = "id_button"
+
+TMPL = "phosphor-gpio-monitor@.service"
+INSTFMT = "phosphor-gpio-monitor@{0}.service"
+TGT = "multi-user.target"
+FMT = "../${TMPL}:${TGT}.requires/${INSTFMT}"
+
+SYSTEMD_SERVICE_${PN} += "id-button-pressed.service"
+SYSTEMD_LINK_${PN} += "${@compose_list(d, 'FMT', 'ID_BUTTON_SERVICE')}"