Fix build breakage b/158783867

Add missing dependency for file 'api_levels.json' in rule
'parseNdkApiRule'
Forest test build link: http://shortn/_iCbktdkPsT

Test: m ndk

Change-Id: I9bcd3f8d261e40b6033ec82c4a50971ccb8b45b1
diff --git a/cc/ndk_library.go b/cc/ndk_library.go
index d79badb..5ef9a78 100644
--- a/cc/ndk_library.go
+++ b/cc/ndk_library.go
@@ -329,6 +329,7 @@
 		Description: "parse ndk api symbol file for api coverage: " + symbolFilePath.Rel(),
 		Outputs:     []android.WritablePath{parsedApiCoveragePath},
 		Input:       symbolFilePath,
+		Implicits:   []android.Path{apiLevelsJson},
 		Args: map[string]string{
 			"apiMap": apiLevelsJson.String(),
 		},