tests bsim edtt: Kill stuck processes in the same way as other tests

This test keeps its own partial way of running tests.
Let's have it kill stuck processes in the same way as
the rest (sending another kill 5 seconds after, and printing
a message about what happened)

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
(cherry picked from commit 693ae8635a6478734673280e76d040904ea232c6)
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
diff --git a/tests/bsim/bluetooth/ll/edtt/tests_scripts/_controller_tests_inner.sh b/tests/bsim/bluetooth/ll/edtt/tests_scripts/_controller_tests_inner.sh
index e75f6ff..6626dcf 100755
--- a/tests/bsim/bluetooth/ll/edtt/tests_scripts/_controller_tests_inner.sh
+++ b/tests/bsim/bluetooth/ll/edtt/tests_scripts/_controller_tests_inner.sh
@@ -58,7 +58,7 @@
     rr="rr record -o ${out}"
   fi
   check_program_exists $1
-  run_in_background timeout 300 ${rr} $@
+  run_in_background timeout --kill-after=5 -v 800 ${rr} $@
 }