CONFIG_DT_BCM97346DBSMB is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

BCM97346DBSMB

configname: CONFIG_DT_BCM97346DBSMB

Built-in device tree
└─>BCM97346DBSMB
In linux kernel since version 4.1 (release Date: 2015-06-21)