CHROMIUM: security: bug fix: Wrong lockdep check on container disable

Use the config semaphore instead of the vsocket for lockdep check on
container disable.

BUG=b:126374394
TEST=Run sanity lockdep check on enable/disable.

Signed-off-by: Thomas Garnier <thgarnie@chromium.org>
Change-Id: Icf1884026f8e0a473adff64532a6b0e83551c0f5
Reviewed-on: https://chromium-review.googlesource.com/1488838
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
(cherry picked from commit c5b29af1fc89642d0bdef329fe717816be1b4e66)
Reviewed-on: https://chromium-review.googlesource.com/c/1495756