universal7904: Set fdsan level to warn once

Signed-off-by: Luofan Chen <clfbbn@gmail.com>
Change-Id: I8317c9d744f62018517bfc73c8eb98934fc1b510
diff --git a/vendor.prop b/vendor.prop
index 316ff5e..bada50d 100644
--- a/vendor.prop
+++ b/vendor.prop
@@ -22,6 +22,11 @@
 ## Dalvik
 dalvik.vm.lockprof.threshold=500
 
+## Fdsan
+# Set fdsan to the warn_once severity level
+PRODUCT_PROPERTY_OVERRIDES += \
+    debug.fdsan=warn_once
+
 ## FRP
 # Disable invocation of oem_lock
 ro.frp.pst=/dev/block/persistent