camera: Make some binder interfaces compatible with AIDL

Done:
* ICameraService
* ICameraServiceListener

Partial:
* ICamera (disconnect only)
* IProCameraUser (disconnect only)

Bug: 9213377
Change-Id: I8e2e6e05cfd02ec36be1d5b2c551f10ffb43b5b4
diff --git a/include/camera/ICameraService.h b/include/camera/ICameraService.h
index aaf6eb3..3c2e60a 100644
--- a/include/camera/ICameraService.h
+++ b/include/camera/ICameraService.h
@@ -32,6 +32,9 @@
 class ICameraService : public IInterface
 {
 public:
+    /**
+     * Keep up-to-date with ICameraService.aidl in frameworks/base
+     */
     enum {
         GET_NUMBER_OF_CAMERAS = IBinder::FIRST_CALL_TRANSACTION,
         GET_CAMERA_INFO,