Dist userdebug_plat_sepolicy.cil to facilitate VTS testing

repack_bootimg can use the userdebug_plat_sepolicy.cil artifact to
prepare a debuggable boot image for VTS testing.

(TODO in follow-up) The eliminates the need for GSI
boot-with-debug-ramdisk-*.img, and we can skip building them to
conserve build resources.

Bug: 202129499
Test: m out/target/product/generic_arm64/userdebug_plat_sepolicy.cil
Test: Check presubmit artifacts include userdebug_plat_sepolicy.cil
Change-Id: I7629e462d4febd05ebe8a89a7bc00e8724dcb4a4
diff --git a/Android.bp b/Android.bp
index 1c272f8..e517356 100644
--- a/Android.bp
+++ b/Android.bp
@@ -790,6 +790,9 @@
     src: ":userdebug_plat_sepolicy.conf",
     additional_cil_files: ["private/technical_debt.cil"],
     debug_ramdisk: true,
+    dist: {
+        targets: ["droidcore"],
+    },
 }
 
 // A copy of the userdebug_plat_policy in GSI.