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

Support for picoXcell IPSEC and Layer2 crypto engines

modulename: picoxcell_crypto.ko

configname: CONFIG_CRYPTO_DEV_PICOXCELL

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Support for picoXcell IPSEC and Layer2 crypto engines
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
This option enables support for the hardware offload engines in the
Picochip picoXcell SoC devices. Select this for IPSEC ESP offload
and for 3gpp Layer 2 ciphering support.

Saying m here will build a module named pipcoxcell_crypto.

source code: