win: fix compilation warning on MinGW
win: fix compilation warning on MinGW

src/win/util.c: In function 'uv_os_homedir':
src/win/util.c:1189:46: warning: passing argument 3 of 'GetUserProfileDirectoryW' from incompatible pointer type
if (!GetUserProfileDirectoryW(token, path, &bufsize)) {
^
In file included from src/win/util.c:39:0:
C:/buildtools/vendor/mingw64/x86_64-w64-mingw32/include/userenv.h:52:29: note: expected 'LPDWORD' but argument is of type 'size_t *'
USERENVAPI WINBOOL WINAPI GetUserProfileDirectoryW(HANDLE hToken,LPWSTR lpProfileDir,LPDWORD lpcchSize);
^

PR-URL: https://github.com/libuv/libuv/pull/388
Reviewed-By: Saúl Ibarra Corretgé <8a7991f6950ea189abf159d6ec98d2fcc13dc5f6@gmail.com>

unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso