arm64: configs: Add kernel configuration for 6.6.63 with 64k pages

Add a comprehensive kernel configuration file for Linux 6.6.63 targeting
ARM64 architecture with 64k page size. This configuration enables essential
features for NVIDIA ARM64 platforms including:

- 64k page size configuration (CONFIG_ARM64_64K_PAGES)
- Full ARM64 architecture support with NUMA balancing
- BPF subsystem with JIT compilation
- Control groups (cgroups) support for resource management
- Memory controller with swap support
- CPU isolation and RCU subsystem configuration
- Process accounting and task statistics
- Standard kernel debugging and security features

The configuration is built with GCC 12.2.0 and includes the build salt
"6.6.y.bsk.z-64k-arm64" to identify this specific kernel build variant.

This configuration serves as the baseline for NVIDIA ARM64 kernel builds
on the linux-nvidia-6.6 branch.

Signed-off-by: Koba Ko <[email protected]>

Author: KobaKoNvidia