Update SVN for Coral to 12 for expected January Docomo Radio
bug: 144373594
(cherry picked from commit 0196788292b69d03ad1f45b7570dac704f6dfa66)

Change-Id: Iee4a9324e4bebe5c810584473d951fe9d7782238
diff --git a/device.mk b/device.mk
index c170639..7b8d55b 100644
--- a/device.mk
+++ b/device.mk
@@ -939,7 +939,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_PROPERTY_OVERRIDES += \
-	ro.vendor.build.svn=11
+	ro.vendor.build.svn=12
 
 PRODUCT_COPY_FILES += \
     $(LOCAL_PATH)/powerhint.json:$(TARGET_COPY_OUT_VENDOR)/etc/powerhint.json