msvcr80: Forward _malloc_crt functions to msvcrt.malloc.

dlls/msvcr80/msvcr80.spec

@@ -72,7 +72,7 @@
 @ stub ?vswprintf@@YAHPA_WIPB_WPAD@Z
 @ stub ?what@exception@std@@UBEPBDXZ
 @ stub @_calloc_crt@8
-@ stub @_malloc_crt@4
+@ cdecl _malloc_crt@4(long) msvcrt.malloc
 @ stub @_realloc_crt@8
 @ cdecl $I10_OUTPUT() msvcrt.$I10_OUTPUT
 @ cdecl -arch=i386 _CIacos() msvcrt._CIacos
@@ -659,7 +659,7 @@
 @ stub _ltow_s
 @ cdecl _makepath(ptr str str str str) msvcrt._makepath
 @ stub _makepath_s
-@ stub _malloc_crt
+@ cdecl _malloc_crt(long) msvcrt.malloc
 @ cdecl _mbbtombc(long) msvcrt._mbbtombc
 @ stub _mbbtombc_l
 @ cdecl _mbbtype(long long) msvcrt._mbbtype