Allowlist java.lang.constant in libcore

Bug: 270028670
Test: m droid
Change-Id: I7612998fd518442defd5f9f00115e6a16e261b18
diff --git a/scripts/check_boot_jars/package_allowed_list.txt b/scripts/check_boot_jars/package_allowed_list.txt
index 08bd80c..ce461b1 100644
--- a/scripts/check_boot_jars/package_allowed_list.txt
+++ b/scripts/check_boot_jars/package_allowed_list.txt
@@ -8,6 +8,7 @@
 java\.io
 java\.lang
 java\.lang\.annotation
+java\.lang\.constant
 java\.lang\.invoke
 java\.lang\.ref
 java\.lang\.reflect