CONFIG_ARCH_BCMRING is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Broadcom BCMRING

configname: CONFIG_ARCH_BCMRING

ARM system type
└─>Broadcom BCMRING
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
Support for Broadcom's BCMRing platform.