Expose setShouldUseHugepages to @SystemApi

Bug: 383347947
Test: atest MicrodroidTests
Change-Id: I5f525833e78a44ff254b7e0ec5ff570579e068bd
diff --git a/build/avf_flags.aconfig b/build/avf_flags.aconfig
new file mode 100644
index 0000000..9815c60
--- /dev/null
+++ b/build/avf_flags.aconfig
@@ -0,0 +1,11 @@
+package: "com.android.system.virtualmachine.flags"
+container: "com.android.virt"
+
+flag {
+  name: "promote_set_should_use_hugepages_to_system_api"
+  is_exported: true
+  namespace: "virtualization"
+  description: "Flag used in @FlaggedApi annotation for setShouldUseHugepages"
+  bug: "383347947"
+  is_fixed_read_only: true
+}