Update SVN to 15 for O6R4 Jan MPR 2022 am: 6970a1c68c

Original change: https://googleplex-android-review.googlesource.com/c/device/google/raviole/+/16387343

Change-Id: I85f148a9185fd3988afc4feabf664bd1598926e6
diff --git a/device-oriole.mk b/device-oriole.mk
index 7c76aa4..6f96d63 100644
--- a/device-oriole.mk
+++ b/device-oriole.mk
@@ -171,7 +171,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_VENDOR_PROPERTIES += \
-    ro.vendor.build.svn=14
+    ro.vendor.build.svn=15
 
 # Hide cutout overlays
 PRODUCT_PACKAGES += \
diff --git a/device-raven.mk b/device-raven.mk
index 6caec51..14d2809 100644
--- a/device-raven.mk
+++ b/device-raven.mk
@@ -183,7 +183,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_VENDOR_PROPERTIES += \
-    ro.vendor.build.svn=14
+    ro.vendor.build.svn=15
 
 # Hide cutout overlays
 PRODUCT_PACKAGES += \