Fixed android.appsecurity.cts.StorageHostTest

Fixed android.appsecurity.cts.StorageHostTest#testFullDisk on auto
by iterating through all available scrollable containers to find
the necessary UI element.

Bug: 209531673
Test: atest android.appsecurity.cts.StorageHostTest#testFullDisk
Change-Id: Ia5fc484f46fde1f306beb9b943c19beb7c68248b
1 file changed