dd: make it recognize not only 'k' but 'K' too;

make it (partially) CONFIG_LFS-aware

e2fsprogs/util.c

@@ -33,13 +33,8 @@ void proceed_question(void)
 void check_plausibility(const char *device, int force)
 {
 	int val;
-#ifdef CONFIG_LFS
-	struct stat64 s;
-	val = stat64(device, &s);
-#else
-	struct stat s;
-	val = stat(device, &s);
-#endif
+	STRUCT_STAT s;
+	val = STAT(device, &s);
 	if (force)
 		return;
 	if(val == -1)