config: Build Etar

Change-Id: I5cc6e50a8fbc3b0f86793292330edcd33b6d9c48
diff --git a/config/common_mobile.mk b/config/common_mobile.mk
index 37b9658..fc7ecdc 100644
--- a/config/common_mobile.mk
+++ b/config/common_mobile.mk
@@ -27,6 +27,7 @@
     AudioFX \
     Backgrounds \
     Eleven \
+    Etar \
     Jelly \
     LockClock \
     Profiles \