Merge "rust modules respects the installable property" am: f7ff81ca95 am: c8ee3111b1

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1840055

Change-Id: I77e9dedb92bb9eedbf5b06929e73a5824f9b87c2
diff --git a/rust/rust.go b/rust/rust.go
index 0a7d68d..b9afc7f 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -663,7 +663,7 @@
 }
 
 func (mod *Module) installable(apexInfo android.ApexInfo) bool {
-	if !mod.EverInstallable() {
+	if !proptools.BoolDefault(mod.Installable(), mod.EverInstallable()) {
 		return false
 	}