fix(touchexplorer): Update test for new device ID for injected events

Also update these tests to use EnableFlags so that they always
run regardless of the flag values in the server.

Bug: 364408887
Test: atest AccessibilityInputFilterInputTest
Flag: com.android.server.accessibility.touch_explorer_use_virtual_device_id
Change-Id: I95ee03115fcb17171ff685ce9ad124db22e7c9b0