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/ICamera.h b/include/camera/ICamera.h
index b2125bd..f3a186e 100644
--- a/include/camera/ICamera.h
+++ b/include/camera/ICamera.h
@@ -32,6 +32,9 @@
 
 class ICamera: public IInterface
 {
+    /**
+     * Keep up-to-date with ICamera.aidl in frameworks/base
+     */
 public:
     DECLARE_META_INTERFACE(Camera);