Add flags needed for gcov to gcc debug compilation
Add flags needed for gcov to gcc debug compilation

shurikasa/CMake,ptoharia/CMake,jafyvilla/CMake,hernando/vmmlib,biddisco/CMake,shuaibarshad/KAUST-CMake,hernando/vmmlib,biddisco/CMake,ptoharia/CMake,jafyvilla/CMake,ptoharia/CMake,biddisco/CMake,shuaibarshad/KAUST-CMake,shurikasa/CMake,tribal-tec/vmmlib,rballester/vmmlib,jafyvilla/CMake,shurikasa/CMake,rballester/vmmlib,ptoharia/CMake,biddisco/CMake,shuaibarshad/KAUST-CMake,shurikasa/CMake,jafyvilla/CMake,hernando/vmmlib,shuaibarshad/KAUST-CMake,rballester/vmmlib