Fix typo

Change-Id: I45e5fbe272f837e751eea14162432de1af1c67a2
diff --git a/target/product/full_base_telephony.mk b/target/product/full_base_telephony.mk
index fa55987..c376314 100644
--- a/target/product/full_base_telephony.mk
+++ b/target/product/full_base_telephony.mk
@@ -19,7 +19,7 @@
 # build quite specifically for the emulator, and might not be
 # entirely appropriate to inherit from for on-device configurations.
 
-PRODUCT_PACKAGES :\
+PRODUCT_PACKAGES := \
     VoiceDialer
 
 PRODUCT_PROPERTY_OVERRIDES := \