Update lynx SVN to  21

Bug: 302612466
Change-Id: Id418cfb0934077258b796552b0ff376ca8dde30e
diff --git a/device-lynx.mk b/device-lynx.mk
index 5667008..9002502 100644
--- a/device-lynx.mk
+++ b/device-lynx.mk
@@ -203,7 +203,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_VENDOR_PROPERTIES += \
-    ro.vendor.build.svn=20
+    ro.vendor.build.svn=21
 
 # Set support hide display cutout feature
 PRODUCT_PRODUCT_PROPERTIES += \