fix recursive UC_HOOK_MEM callbacks for cross pages access (#1113)

Co-authored-by: bruno <bruno>
Co-authored-by: Nguyen Anh Quynh <aquynh@gmail.com>

include/uc_priv.h

@@ -223,6 +223,8 @@ struct uc_struct {
 
     uint64_t block_addr;    // save the last block address we hooked
 
+    int size_recur_mem; // size for mem access when in a recursive call
+
     bool init_tcg;      // already initialized local TCGv variables?
     bool stop_request;  // request to immediately stop emulation - for uc_emu_stop()
     bool quit_request;  // request to quit the current TB, but continue to emulate - for uc_mem_protect()