default or selected kernelversion does not have config value CONFIG_FSL_DPAA2_ETHSW.
Result is shown for kernelversion 6.9.9

Freescale DPAA2 Ethernet Switch

modulename: dpaa2-ethsw.ko

configname: CONFIG_FSL_DPAA2_ETHSW

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Freescale DPAA2 Ethernet Switch
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Driver for Freescale DPAA2 Ethernet Switch. Select
BRIDGE to have support for bridge tools.

source code:
drivers/staging/fsl-dpaa2/ethsw/