pvmfw: Use label syntax for device assignment test data

Bug: 323453334
Test: atest libpvmfw.device_assignment.test
Change-Id: Iee55d61196c1471f84ca840b145c779f62ea6f48
diff --git a/Android.bp b/Android.bp
index 6e7c3c8..f50007f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -87,7 +87,7 @@
 genrule_defaults {
     name: "dts_to_dtb",
     tools: ["dtc"],
-    cmd: "FILES=($(in)) && $(location dtc) -I dts -O dtb $${FILES[-1]} -o $(out)",
+    cmd: "FILES=($(in)) && $(location dtc) -@ -I dts -O dtb $${FILES[-1]} -o $(out)",
 }
 
 // This is a temporary workaround until b/309090563 is implemented.