fixed ba1e0830 from https://gitee.com/zhoujun62/xts_acts/pulls/5987

Solve XTS ActsOnAndOffScreenTest fail problem
Signed-off-by: Nz00445003 <zhoujun62@huawei.com>
Change-Id: I5f86999e703a9121b659d2d793ba5c7bb2febbff

ability/ability_runtime/actssupportfunction/actsonandoffscreentest/entry/src/main/ets/test/OnAndOffScreenTest.test.ets

@@ -55,6 +55,7 @@ export default function OnAndOffScreenTest() {
     })
 
     async function slideScreen(TAG) {
+      await sleep(1500)
       console.log(TAG + "slideScreen start");
       let cmd = 'uinput -T -d 300 600 -m 300 600 300 100 -u 300 100';
       await executeShellCommand(cmd, TAG);
@@ -634,4 +635,4 @@ export default function OnAndOffScreenTest() {
       })
     })
   })
-}
\ No newline at end of file
+}