hardware: samsung_slsi: libcamera2: Fix black frame after night shot

By maintaining proper scene mode during shot-to-shot period,
removed black frames after taking a night shot.

Bug: 7283906
Change-Id: I4778f71c8ed5e73a62a12fc78c15348de27315a1
Signed-off-by: Sungjoong Kang <sj3.kang@samsung.com>
diff --git a/libcamera2/ExynosCameraHWInterface2.h b/libcamera2/ExynosCameraHWInterface2.h
index 30ef0af..e10905e 100644
--- a/libcamera2/ExynosCameraHWInterface2.h
+++ b/libcamera2/ExynosCameraHWInterface2.h
@@ -675,6 +675,7 @@
     int                                 m_scpOutputImageCnt;
     int                                 m_nightCaptureCnt;
     int                                 m_nightCaptureFrameCnt;
+    int                                 m_lastSceneMode;
     int                                 m_thumbNailW;
     int                                 m_thumbNailH;
     int                                 m_reprocessStreamId;