tests: Temporarily disable ScreenRecoveryUITest tests.

Seems they're racing with SurfaceFlinger in acquiring the display, which
occasionally takes down the device and leads to test failures.

Bug: 120601844
Test: Run recovery_unit_test on marlin. ScreenRecoveryUITest not
      triggered.
Change-Id: I80b21595247a87fc1f2f95aa68df59f58bdf0257