hardware: samsung_slsi: libcamera2: Enabled Touch Auto Focus

Touch Auto Focus is enabled.

Change-Id: I01f8475a874763561e74294d2d8bff9484faf536
Signed-off-by: Sungjoong Kang <sj3.kang@samsung.com>
diff --git a/libcamera2/ExynosCameraHWInterface2.h b/libcamera2/ExynosCameraHWInterface2.h
index 9328486..ab2ca9e 100644
--- a/libcamera2/ExynosCameraHWInterface2.h
+++ b/libcamera2/ExynosCameraHWInterface2.h
@@ -473,6 +473,7 @@
     void            StartISP();
     int             GetAfState();
     void            SetAfMode(enum aa_afmode afMode);
+    void            OnAfTriggerStart(int id);
     void            OnAfTrigger(int id);
     void            OnAfTriggerAutoMacro(int id);
     void            OnAfTriggerCAFPicture(int id);
@@ -536,6 +537,7 @@
     bool                                m_scp_closing;
     bool                                m_scp_closed;
     bool                                m_wideAspect;
+    uint32_t                            lastAfRegion[4];
 
     mutable Mutex    m_qbufLock;
 
@@ -548,6 +550,8 @@
     bool                                m_IsAfLockRequired;
     int                                 m_serviceAfState;
     bool                                m_AfHwStateFailed;
+    int                                 m_afPendingTriggerId;
+    int                                 m_afModeWaitingCnt;
     struct camera2_shot                 m_jpegMetadata;
 };