crt: Avoid memset call in profile_ctl.

In preparation for building the CRT with -fno-builtin. This allows the compiler
to zero memory without making an actual library call.

Signed-off-by: Jacek Caban <jacek@codeweavers.com>

mingw-w64-crt/profile/profil.c

diff --git a/mingw-w64-crt/profile/profil.c b/mingw-w64-crt/profile/profil.c
index 0c03871..c566bb6 100644
--- a/mingw-w64-crt/profile/profil.c
+++ b/mingw-w64-crt/profile/profil.c
@@ -185,7 +185,7 @@
   if (scale)
     {
       memset (samples, 0, size);
-      memset (p, 0, sizeof *p);
+      *p = (struct profinfo){0};
       maxbin = size >> 1;
       prof.counter = (u_short *) samples;
       prof.lowpc = offset;