dialog: typo fix for DLG_IFLAG_DMQ_SYNC flag value

(cherry picked from commit ad427fc19c56110f66df86b7b49e23c00313610a)

src/modules/dialog/dlg_hash.h

@@ -77,7 +77,7 @@
 #define DLG_IFLAG_TIMER_NORESET     (1<<3) /*!< don't reset dialog timers on in-dialog messages reception */
 #define DLG_IFLAG_CSEQ_DIFF         (1<<4) /*!< CSeq changed in dialog */
 #define DLG_IFLAG_PRACK             (1<<5) /*!< PRACK was routed during initial state */
-#define DLG_IFLAG_DMQ_SYNC          (1<<5) /*!< sync this dialog via dmq DMQ*/
+#define DLG_IFLAG_DMQ_SYNC          (1<<6) /*!< sync this dialog via dmq DMQ*/
 
 #define DLG_CALLER_LEG         0 /*!< attribute that belongs to a caller leg */
 #define DLG_CALLEE_LEG         1 /*!< attribute that belongs to a callee leg */