deploy.bbclass: use new style staging for deploy tasks

All tasks which implement a do_deploy should inherit this class to have the
changes in the deploy task staged.

Update recipes which include a do_deploy function to inherit this class and
to use DEPLOYDIR rather than DEPLOY_DIR_IMAGE.

Signed-off-by: Joshua Lock <josh@linux.intel.com>

meta/classes/deploy.bbclass

@@ -0,0 +1,11 @@
+DEPLOYDIR = "${WORKDIR}/deploy-${PN}"
+SSTATETASKS += "do_deploy"
+do_deploy[sstate-name] = "deploy-${PN}"
+do_deploy[sstate-inputdirs] = "${DEPLOYDIR}"
+do_deploy[sstate-outputdirs] = "${DEPLOY_DIR_IMAGE}"
+
+python do_deploy_setscene () {
+    sstate_setscene(d)
+}
+addtask do_deploy_setscene
+do_deploy[dirs] = "${DEPLOYDIR} ${B}"