Bluetooth: Host: Allow conn create timeout longer than RPA timeout

https://github.com/zephyrproject-rtos/zephyr/pull/72674

 fixed
a bug where this configuration did not work.

Now that this configuration is tested, we should mark it
as supported.

The timeout check that was present in the code before
was useless and was not working because the check was
run before a default timeout of 0 was converted to a timeout.

Signed-off-by: Rubin Gerritsen <rubin.gerritsen@nordicsemi.no>