Revert unrelated changes to MSVC project file nasm commands

The cabac encoder commit accidentally changed some of the nasm
commands in the MSVC project file, that were previously
made consistent in b17e9bb32 and 7720f2cc5.
Merge pull request #1464 from mstorsjo/unify-msvc-nasm

Revert unrelated changes to MSVC project file nasm commands