Call shouldEmbedJnis only when needed.

Test: app_test.go
Change-Id: I4351b0ba5e1e7c89f16b4c891fcfbabb5c90c8c8

java/app.go

@@ -165,7 +165,6 @@ func (a *AndroidApp) DepsMutator(ctx android.BottomUpMutatorContext) {
 		a.aapt.deps(ctx, sdkDep)
 	}
 
-	embedJni := a.shouldEmbedJnis(ctx)
 	for _, jniTarget := range ctx.MultiTargets() {
 		variation := append(jniTarget.Variations(),
 			blueprint.Variation{Mutator: "link", Variation: "shared"})
@@ -174,7 +173,7 @@ func (a *AndroidApp) DepsMutator(ctx android.BottomUpMutatorContext) {
 		}
 		ctx.AddFarVariationDependencies(variation, tag, a.appProperties.Jni_libs...)
 		if String(a.appProperties.Stl) == "c++_shared" {
-			if embedJni {
+			if a.shouldEmbedJnis(ctx) {
 				ctx.AddFarVariationDependencies(variation, tag, "ndk_libc++_shared")
 			}
 		}