Jump SVN to 8 for O6R4 Dec QPR1

Bug: 203740694
Change-Id: I2b2cb7e6564b9633ce2055e2de59ba9de2fdc006
diff --git a/device-raven.mk b/device-raven.mk
index 477ec00..723844c 100644
--- a/device-raven.mk
+++ b/device-raven.mk
@@ -145,7 +145,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_VENDOR_PROPERTIES += \
-    ro.vendor.build.svn=5
+    ro.vendor.build.svn=8
 
 # Hide cutout overlays
 PRODUCT_PACKAGES += \