use `&Type` instead of `*Type` when declaring references

[topcheese]

Remotery.v:729:22: error: use `&Type` instead of `*Type` when declaring references
  727 |     rem i64
  728 | }
  729 | fn mbstowcs( wchar_t *restrict,  char *restrict,  usize) usize

I figure you want to know the issues that come up, but so far seems like easy fixes.

C code origin -> https://github.com/Celtoys/Remotery

[felipensp]

Possible related to #164