Build SlimOTA

This is to include Slim OTA app in the ROM

Change-Id: I5d61fdd19ee20318f6f80704fb49e5b471c87aae
diff --git a/config/common.mk b/config/common.mk
index 2c6b883..8b2d693 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -139,6 +139,7 @@
     HoloLauncherHD \
     LockClock \
     SlimFileManager \
+    SlimOTA \
     Velvet \
     LatinIME