default or selected kernelversion does not have config value CONFIG_USB_GADGET_PXA25X.
Result is shown for kernelversion 5.6.18

PXA 25x or IXP 4xx

configname: CONFIG_USB_GADGET_PXA25X

USB Peripheral Controller
└─>PXA 25x or IXP 4xx
In linux kernel since version 2.6.27 (release Date: 2008-10-09)  
Intel's PXA 25x series XScale ARM-5TE processors include
an integrated full speed USB 1.1 device controller. The
controller in the IXP 4xx series is register-compatible.

It has fifteen fixed-function endpoints, as well as endpoint
zero (for control transfers).

Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "pxa25x_udc" and force all
gadget drivers to also be dynamically linked.