Add disable/enable camera service watchdog feature

- Allows the camera service watchdog to be enabled and disabled
- Usage: adb shell cmd media.camera set-cameraservice-watchdog [0/1]

Test: Manual
Bug: 62296107
Change-Id: I528ca819cc2be03006c77e869adf8f5fa99128d6
diff --git a/services/camera/libcameraservice/CameraServiceWatchdog.cpp b/services/camera/libcameraservice/CameraServiceWatchdog.cpp
index fcd6ebe..950da6a 100644
--- a/services/camera/libcameraservice/CameraServiceWatchdog.cpp
+++ b/services/camera/libcameraservice/CameraServiceWatchdog.cpp
@@ -64,6 +64,17 @@
     }
 }
 
+void CameraServiceWatchdog::setEnabled(bool enable)
+{
+    AutoMutex _l(mEnabledLock);
+
+    if (enable) {
+        mEnabled = true;
+    } else {
+        mEnabled = false;
+    }
+}
+
 void CameraServiceWatchdog::stop(uint32_t tid)
 {
     AutoMutex _l(mWatchdogLock);