default or selected kernelversion does not have config value CONFIG_SPI_BCM53XX.
Result is shown for kernelversion 6.7-rc3

Broadcom BCM53xx SPI controller

modulename: spi-bcm53xx.ko

configname: CONFIG_SPI_BCM53XX

Linux Kernel Configuration
└─>Device Drivers
└─>SPI support
└─>Broadcom BCM53xx SPI controller
In linux kernel since version 3.18 (release Date: 2014-12-07)  
Enable support for the SPI controller on Broadcom BCM53xx ARM SoCs.

source code:
drivers/spi/spi-bcm53xx.c
selects
CONFIG_BCMA