Michael Olbrich authored Dec 13, 2023 and Marius Vlad committed Apr 16, 2024

Otherwise shseat->focused_ivisurf can point to deleted memory.
This does not happen with the hmi-controller because it explicitly assigns a new
focused surface. But the ivi-shell should not relay on the controller here.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
(cherry picked from commit d6681ced)