I have uploaded the Image with Keil µVision compilation errors, included Files in main.c and on the left side the compilation of micro_ecc_lib_nrf52.lib file using " build_all.bat " bash script file and mingw32-make.
Regarding the Nordic Info Center about files missing or to be updated, I think It was my misunderstanding about missing files in SDKv13.0.0 as stated in the first NOTE section of this link infocenter.nordicsemi.com/index.jsp
Thanks and regards, Kumar