west: Add mbedtls fix for gcc 14.3

This patch (submitted upstream) avoids an incorrect warning generated by
gcc 14.3 about array bounds. It should not change the generated code at
all.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>