Update lynx SVN to 15

Bug: 289414927
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:298ba980a2bfcc3b0628cee69670f2c3e35f626b)
Merged-In: I8981f42c3b0b8ba9e5246c0aaedaafc5d7bfe71a
Change-Id: I8981f42c3b0b8ba9e5246c0aaedaafc5d7bfe71a

device-lynx.mk

@@ -203,7 +203,7 @@ PRODUCT_VENDOR_PROPERTIES += \
 
 # Increment the SVN for any official public releases
 PRODUCT_VENDOR_PROPERTIES += \
-    ro.vendor.build.svn=14
+    ro.vendor.build.svn=15
 
 # Set support hide display cutout feature
 PRODUCT_PRODUCT_PROPERTIES += \