crt: Fix decoration for 32-bit x86 kernel32.def InterlockedPushListSList symbol

Function InterlockedPushListSList() is declared mingw-w64 header file
ntifs.h with fastcall calling convention and MS documentation says same:
https://learn.microsoft.com/en-us/windows/win32/sync/interlockedpushlistslist

Trying to compile simple code which uses InterlockedPushListSList()

  #include <ntifs.h>
  PSLIST_ENTRY func(PSLIST_HEADER ListHead, PSLIST_ENTRY List, PSLIST_ENTRY ListEnd, ULONG Count) {
    return InterlockedPushListSList(ListHead, List, ListEnd, Count);
  }

result in linking error:

  /usr/bin/i686-w64-mingw32-ld: /tmp/ccSHmgvJ.o: in function `func':
  /tmp/test20.c:2: undefined reference to `@InterlockedPushListSList@16'
  collect2: error: ld returned 1 exit status

Change the stdcall mangling for InterlockedPushListSList symbol in file
lib32/kernel32.def to fastcall mangling. This fixes linking error.

Also MS Windows SDK in its Kernel32.lib has declared the
InterlockedPushListSList import symbol as fastcall:
@InterlockedPushListSList@16.

Signed-off-by: LIU Hao <lh_mouse@126.com>

mingw-w64-crt/lib32/kernel32.def

diff --git a/mingw-w64-crt/lib32/kernel32.def b/mingw-w64-crt/lib32/kernel32.def
index 7443417..8d5fad7 100644
--- a/mingw-w64-crt/lib32/kernel32.def
+++ b/mingw-w64-crt/lib32/kernel32.def
@@ -1553,7 +1553,7 @@
 InitializeCriticalSectionEx@12
 InitializeProcThreadAttributeList@16
 InitializeSRWLock@4
-InterlockedPushListSList@8
+@InterlockedPushListSList@16 ; really fastcall calling convention
 IsCalendarLeapDay@20
 IsCalendarLeapMonth@16
 IsCalendarLeapYear@12