CameraService: Updated watchdog disconnect timer

- Update disconnect watchdog timer to prevent
thwarting of existing error handling for
timeouts and prevent from firing earlier than
intended delays.


Bug: 251252726
Bug: 247397845
Test: Manual
Change-Id: Id494157d02dae089a91305f128d9e4f5b660e30f
(cherry picked from commit 7d412d2cd37510100c1a3e22f2790e96b435ee26)
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.h b/services/camera/libcameraservice/common/Camera2ClientBase.h
index 3af781b..e51d25d 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.h
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.h
@@ -132,6 +132,9 @@
 
 protected:
 
+    // Used for watchdog timeout to monitor disconnect
+    static const nsecs_t kBufferTimeDisconnectNs = 3000000000; // 3 sec.
+
     // The PID provided in the constructor call
     pid_t mInitialClientPid;
     bool mOverrideForPerfClass = false;