Don't hide *.kotlin_module in turbine dependencies

The jars containing the merged header classes from transitive
static dependencies were stripping all of META-INF/.  Kotlin
puts metadata in META-INF that is used to map the package to
the static class that contains the package-level functions.

This also exposed that the metadata in META-INF is always
called "name.kotlin_module", so a library that contains
kotlin files with a dependency that also contains kotlin files
would shade the metadata file.  Use a unique name instead.

Fixes: 131709692
Test: m checkbuild
Change-Id: I5cd276e563206e37c4c0d90fe9f346e9396f88c0
diff --git a/java/java.go b/java/java.go
index e764ec3..4ca7838 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1380,7 +1380,7 @@
 	// since we have to strip META-INF/TRANSITIVE dir from turbine.jar
 	combinedJar := android.PathForModuleOut(ctx, "turbine-combined", jarName)
 	TransformJarsToJar(ctx, combinedJar, "for turbine", jars, android.OptionalPath{},
-		false, nil, []string{"META-INF"})
+		false, nil, []string{"META-INF/TRANSITIVE"})
 	headerJar = combinedJar
 
 	if j.expandJarjarRules != nil {