RK3399 修改系统默认语言为简体中文

CPU：RK3288

系统：Android 7.1

修改系统默认语言为简体中文

diff --git a/build/target/product/full_base.mk b/build/target/product/full_base.mk
index 65bdf0f..5fd7be6 100644
--- a/build/target/product/full_base.mk
+++ b/build/target/product/full_base.mk
@@ -43,7 +43,7 @@ PRODUCT_PROPERTY_OVERRIDES := 
     ro.config.notification_sound=pixiedust.ogg
 
 # Put en_US first in the list, so make it default.
-PRODUCT_LOCALES := en_US
+PRODUCT_LOCALES := zh_CN
 
 # Get some sounds
 $(call inherit-product-if-exists, frameworks/base/data/sounds/AllAudio.mk)