cmake/common: Add language map entry for nasm #16902

Job	Run time
Arch Linux	20m 20s
CUDA (on Arch)	7m 5s
Fedora	17m 46s
Gentoo	21m 50s
Arch / PyPy	19m 44s
OpenSUSE	16m 7s
Ubuntu Bionic	15m 6s
Ubuntu Rolling (gcc, g++)	19m 29s
Ubuntu Rolling (--unity=on -Ddefault_library=static, --no-unittests, gcc, g++)	13m 9s
Ubuntu Rolling (-Ddefault_library=both, --no-unittests, gcc, g++)	14m 14s
Ubuntu Rolling (clang, clang++)	22m 12s
Ubuntu Rolling (--unity=on, --no-unittests, clang, clang++)	15m 35s
Ubuntu Rolling (--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json, 0, gcc, g++)	14m 4s
Ubuntu Rolling (--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json, --unity=on, gcc, g++)	15m 9s
	3h 51m 50s

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