Describe the bug
These two tests
tests/bsim/bluetooth/host/l2cap/credits/tests_scripts/l2cap_credits.sh
tests/bsim/bluetooth/host/l2cap/credits/tests_scripts/l2cap_credits_ecred.sh
are currently failing in main

To Reproduce
Steps to reproduce the behavior:

1. tests/bsim/bluetooth/host/l2cap/compile.sh
2. tests/bsim/bluetooth/host/l2cap/credits/tests_scripts/l2cap_credits.sh
3. See error

Expected behavior
No failure

Impact
Broken CI in main for bsim tests

Logs and console output

...
d_00: @00:00:00.638712  [00:00:00.638,702] <dbg> main: l2cap_chan_send: chan 0x81d52a0 conn 0 data 0x81d5200 len 130
d_00: @00:00:00.638712 ERROR: (ZEPHYR_BASE/tests/bsim/bluetooth/host/l2cap/credits/src/main.c:47): No more memory
d_00: @00:00:00.638712  The TESTCASE FAILED (test return code 2)

Environment (please complete the following information):

• OS: Linux, CI
• Toolchain host gcc 11/12
• Commit SHA or Version used: Main as of now 4959a02

Additional context
Introduced by 43de309