Build cgroup sample code

configname: CONFIG_SAMPLE_CGROUP

Linux Kernel Configuration
└─>Kernel hacking
└─>Sample kernel code
└─>Build cgroup sample code
In linux kernel since version 6.8 (release Date: 2024-03-10)  
Build samples that demonstrate the usage of the cgroup API.

depends
CONFIG_CC_CAN_LINK
CONFIG_CGROUPS
CONFIG_HEADERS_INSTALL
CONFIG_SAMPLES