Allowlist fake_device_config in order to build some java_aconfig_library for host.

Bug: 305255550
Test: CI
Change-Id: Ic073a5fef0acccb7fcbbacb93c9f42ea80e8e154
diff --git a/android/allowlists/allowlists.go b/android/allowlists/allowlists.go
index cc428e9..31aff76 100644
--- a/android/allowlists/allowlists.go
+++ b/android/allowlists/allowlists.go
@@ -1009,6 +1009,8 @@
 		"libservice-connectivity",
 
 		"mainline_modules_sdks_test",
+
+		"fake_device_config",
 	}
 
 	Bp2buildModuleTypeAlwaysConvertList = []string{