Add property to set initial svn as 1

Bug: 228742484
Test: manual
Change-Id: I9c97d2280ac50a0121fafd19a07592b03fd7e439

device-cheetah.mk

@@ -208,6 +208,10 @@ PRODUCT_PRODUCT_PROPERTIES += \
 PRODUCT_VENDOR_PROPERTIES += \
 	vendor.zram.size=3g
 
+# Increment the SVN for any official public releases
+PRODUCT_VENDOR_PROPERTIES += \
+    ro.vendor.build.svn=1
+
 # DCK properties based on target
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.gms.dck.eligible_wcc=2

device-panther.mk

@@ -200,6 +200,10 @@ PRODUCT_PRODUCT_PROPERTIES += \
 PRODUCT_VENDOR_PROPERTIES += \
 	vendor.zram.size=3g
 
+# Increment the SVN for any official public releases
+PRODUCT_VENDOR_PROPERTIES += \
+    ro.vendor.build.svn=1
+
 # DCK properties based on target
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.gms.dck.eligible_wcc=2