camera: fix `-Wreorder` compiler warnings

Test: add `USE_CAMERA_V4L2_HAL := true` to
      hardware/libhardware/modules/camera/3_4/Android.mk and build
      mmm hardware/libhardware/modules/camera/3_4
Change-Id: I02cbe738fb7484e3a1d55712b0f0a55037e181e1
Signed-off-by: Sergii Piatakov <sergii.piatakov@globallogic.com>
diff --git a/modules/camera/3_4/v4l2_camera.cpp b/modules/camera/3_4/v4l2_camera.cpp
index 62d790e..4ec68b7 100644
--- a/modules/camera/3_4/v4l2_camera.cpp
+++ b/modules/camera/3_4/v4l2_camera.cpp
@@ -76,12 +76,12 @@
     : default_camera_hal::Camera(id),
       device_(std::move(v4l2_wrapper)),
       metadata_(std::move(metadata)),
-      max_input_streams_(0),
-      max_output_streams_({{0, 0, 0}}),
       buffer_enqueuer_(new FunctionThread(
           std::bind(&V4L2Camera::enqueueRequestBuffers, this))),
       buffer_dequeuer_(new FunctionThread(
-          std::bind(&V4L2Camera::dequeueRequestBuffers, this))) {
+          std::bind(&V4L2Camera::dequeueRequestBuffers, this))),
+      max_input_streams_(0),
+      max_output_streams_({{0, 0, 0}}) {
   HAL_LOG_ENTER();
 }