Update Wahoo SVN to 51

Bug: 163542576
Change-Id: I4c98b705f91eb47469d02f5c1a5fa1ad57581865
(cherry picked from commit 508ceb4430c59d30facfa63ddef72f8d17475db8)
diff --git a/device.mk b/device.mk
index 80e08ae..b5dff48 100755
--- a/device.mk
+++ b/device.mk
@@ -47,7 +47,7 @@
 
 # Set the SVN for the targeted MR release
 PRODUCT_PROPERTY_OVERRIDES += \
-    ro.vendor.build.svn=50
+    ro.vendor.build.svn=51
 
 # Enforce privapp-permissions whitelist
 PRODUCT_PROPERTY_OVERRIDES += \