update-makefiles.sh: for partial Java pkgs

Packages which contain some non-supported Java types can still have
their Java-supported types used in Java.

Bug: 143566068
Test: mma
Change-Id: I2afc5cc8d0a1bd981108ee2b87d6033fd48bdb37
diff --git a/soundtrigger/2.0/Android.bp b/soundtrigger/2.0/Android.bp
index 5613abd..07c05bc 100644
--- a/soundtrigger/2.0/Android.bp
+++ b/soundtrigger/2.0/Android.bp
@@ -15,5 +15,5 @@
         "android.hardware.audio.common@2.0",
         "android.hidl.base@1.0",
     ],
-    gen_java: false,
+    gen_java: true,
 }