Update raven SVN to 28

Bug: 231380374
Change-Id: Ie7a09bada534130290e85c4d84e383a7dadb9315
diff --git a/device-raven.mk b/device-raven.mk
index f2a5f9c..e3fb280 100644
--- a/device-raven.mk
+++ b/device-raven.mk
@@ -187,7 +187,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_VENDOR_PROPERTIES += \
-    ro.vendor.build.svn=26
+    ro.vendor.build.svn=28
 
 # Hide cutout overlays
 PRODUCT_PACKAGES += \