random: Don't wake crng_init_wait when crng_init == 1

crng_init_wait is only used to wayt for crng_init to be set to 2, so
there's no point to waking it when crng_init is set to 1.  Remove the
unnecessary wake_up_interruptible() call.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/6fbc0bfcbfc1fa2c76fd574f5b6f552b11be7fde.1577088521.git.luto@kernel.orgSigned-off-by: Theodore Ts'o <tytso@mit.edu>

drivers/char/random.c

@@ -946,7 +946,6 @@ static int crng_fast_load(const char *cp, size_t len)
 	if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) {
 		invalidate_batched_entropy();
 		crng_init = 1;
-		wake_up_interruptible(&crng_init_wait);
 		pr_notice("random: fast init done\n");
 	}
 	return 1;