default or selected kernelversion does not have config value CONFIG_WILC1000_PREALLOCATE_AT_LOADING_DRIVER.
Result is shown for kernelversion 5.4.194

Preallocate memory at loading driver

configname: CONFIG_WILC1000_PREALLOCATE_AT_LOADING_DRIVER

Memory Allocation
└─>Preallocate memory at loading driver
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This choice supports static allocation of the memory
for the receive buffer. The driver will allocate the RX buffer
during initial time. The driver will also free the buffer
by calling network device stop.