The kernel customization is not made for orin jetpack6.0 kernel 5.15. version for 36.3 as there are many issues .
you may verify at Kernel Customization — Jetson Linux Developer Guide documentation (nvidia.com)
I request for jetpack 6.0 , there should be a specific kernel customization procedure on jetson website for kernel 5.15 . (Orin nano).
Thanks, hemsingh.