hardware: samsung_slsi: libcamera2: seperate stream thread functions

seperate stream thread functions from 1 to 3 for readibility and stability.

Change-Id: Iea0ec217df8ffb10ca92b76114a0679b58e58fda
Signed-off-by: Sungjoong Kang <sj3.kang@samsung.com>
diff --git a/libcamera2/ExynosCameraHWInterface2.h b/libcamera2/ExynosCameraHWInterface2.h
index 41e4924..76ae6d4 100644
--- a/libcamera2/ExynosCameraHWInterface2.h
+++ b/libcamera2/ExynosCameraHWInterface2.h
@@ -451,6 +451,11 @@
     void                m_streamThreadFunc(SignalDrivenThread * self);
     void                m_streamThreadInitialize(SignalDrivenThread * self);
 
+    void                m_streamFunc0(SignalDrivenThread *self);
+    void                m_streamFunc1(SignalDrivenThread *self);
+
+    void                m_streamBufferInit(SignalDrivenThread *self);
+
     void                m_getAlignedYUVSize(int colorFormat, int w, int h,
                                                 ExynosBuffer *buf);
     bool                m_getRatioSize(int  src_w,  int   src_h,