preproc: varargscount: bugfix for tokens starting with '(' not being counted#543

lgirdwood merged 2 commits intothesofproject:masterthesofproject/sof:masterfrom

mwierzbix:debugability-macro-metaprog-bugfix-varargcount_0_for_parenthesismwierzbix/sof:debugability-macro-metaprog-bugfix-varargcount_0_for_parenthesisCopy head branch name to clipboard