Fix flaky test with enabling virtual sd card fail

Test: atest DocumentsUIGoogleTests
Bug: 142621665
Change-Id: Iccb9e16650963c792d83c4fd89c43e5c2f6c7300
Merged-In: Iccb9e16650963c792d83c4fd89c43e5c2f6c7300
(cherry picked from commit 49f44124d4abed76e3fabab6425de02cf8771735)
1 file changed