DO NOT MERGE Add sl4a as a standard build component

Change-Id: I43700283d4fd9ff6a200d5f9da55b96ca6b0ca96
diff --git a/device.mk b/device.mk
index 0dc1d2d..664de39 100644
--- a/device.mk
+++ b/device.mk
@@ -126,7 +126,8 @@
     hostapd \
     dhcpcd.conf \
     wpa_supplicant \
-    wpa_supplicant.conf
+    wpa_supplicant.conf \
+    sl4a
 
 PRODUCT_PACKAGES += atmel.fw.apq8084