camera: fix `-Wmissing-field-initializers` 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: I2c17b1e40b29ac400e0a950a9cd96d7f9404ea32
Signed-off-by: Sergii Piatakov <sergii.piatakov@globallogic.com>
diff --git a/modules/camera/3_4/camera.cpp b/modules/camera/3_4/camera.cpp
index 35054a0..387134f 100644
--- a/modules/camera/3_4/camera.cpp
+++ b/modules/camera/3_4/camera.cpp
@@ -504,7 +504,10 @@
         static_cast<uint32_t>(request->output_buffers.size()),
         request->output_buffers.data(),
         request->input_buffer.get(),
-        1  // Total result; only 1 part.
+        1,  // Total result; only 1 part.
+        0,  // Number of physical camera metadata.
+        nullptr,
+        nullptr
     };
     // Make the framework callback.
     mCallbackOps->process_capture_result(mCallbackOps, &result);