default or selected kernelversion does not have config value CONFIG_BCM43XX.
Result is shown for kernelversion 5.19-rc1

Broadcom BCM43xx wireless support (DEPRECATED)

modulename: bcm43xx.ko

configname: CONFIG_BCM43XX

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless LAN
└─>Broadcom BCM43xx wireless support (DEPRECATED)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This is an experimental driver for the Broadcom 43xx wireless
chip, found in the Apple Airport Extreme and various other
devices. This driver is deprecated and will be removed
from the kernel in the near future. It has been replaced
by the b43 and b43legacy drivers.

source code:
drivers/net//wireless/bcm43xx/