Convert Android.bp files in sub-directories of tools/metalava

Bug: 299428102
Test: m checkapi
Change-Id: Ia01a394ec80e7d760cfb920993807c4006d8c36e
diff --git a/android/allowlists/allowlists.go b/android/allowlists/allowlists.go
index fb2e0d7..ad7f8d8 100644
--- a/android/allowlists/allowlists.go
+++ b/android/allowlists/allowlists.go
@@ -422,7 +422,7 @@
 		"tools/apifinder":                            Bp2BuildDefaultTrue,
 		"tools/apksig":                               Bp2BuildDefaultTrue,
 		"tools/external_updater":                     Bp2BuildDefaultTrueRecursively,
-		"tools/metalava":                             Bp2BuildDefaultTrue,
+		"tools/metalava":                             Bp2BuildDefaultTrueRecursively,
 		"tools/platform-compat/java/android/compat":  Bp2BuildDefaultTrueRecursively,
 		"tools/tradefederation/prebuilts/filegroups": Bp2BuildDefaultTrueRecursively,
 	}