There is a .ld file located in the build/project_name/spar_ram_proc.ld file which may helpful for the Ram address allocation.
The path in my PC： xx\WICED-Studio-6.0\20706-A2_Bluetooth\build\a2dp_sink-CYW920706WCDEVAL-rom-ram-Wiced-release\spar_ram_proc.ld
For NVRAM allocations, please refer to the doc located at \Doc\WICED-Firmware-Upgrade-Library.pdf
Regards
Jenson
