atmlib: Add stub for ATMFinish.

dlls/atmlib/atmlib.spec

@@ -16,7 +16,7 @@
 @ stub ATMEnumMMFonts
 @ stub ATMEnumMMFontsA
 @ stub ATMEnumMMFontsW
-@ stub ATMFinish
+@ stdcall ATMFinish()
 @ stub ATMFontAvailable
 @ stub ATMFontAvailableA
 @ stub ATMFontAvailableW

dlls/atmlib/main.c

@@ -45,3 +45,9 @@ BOOL WINAPI ATMProperlyLoaded(void)
     FIXME("stub\n");
     return FALSE;
 }
+
+int WINAPI ATMFinish(void)
+{
+    FIXME("stub\n");
+    return 0;
+}