graphics/alizams: fix build on non-amd64 non-i386

In file included from /wrkdirs/usr/ports/graphics/alizams/work/AlizaMS-1.8.3-34-ge36859b/vectormath/sse/vectormath.h:40:
In file included from /usr/lib/clang/13.0.0/include/xmmintrin.h:13:
/usr/lib/clang/13.0.0/include/mmintrin.h:33:5: error: use of undeclared identifier 'builtin_ia32_emms'; did you mean 'builtin_isless'?

__builtin_ia32_emms();
^