scanWindow and interval are reversed

Corrected the byte position for HCI Command
- Set Batch Scan Param sub cmd

bug 17182636

Change-Id: I45045a6e548ed2539d5e43695725883ca1e4ed7a

stack/btm/btm_ble_batchscan.c

@@ -528,8 +528,8 @@ tBTM_STATUS btm_ble_set_batchscan_param(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
 
     UINT8_TO_STREAM (pp_scan, BTM_BLE_BATCH_SCAN_SET_PARAMS);
     UINT8_TO_STREAM (pp_scan, scan_mode);
-    UINT32_TO_STREAM (pp_scan, scan_interval);
     UINT32_TO_STREAM (pp_scan, scan_window);
+    UINT32_TO_STREAM (pp_scan, scan_interval);
     UINT8_TO_STREAM (pp_scan, addr_type);
     UINT8_TO_STREAM (pp_scan, discard_rule);