crypto: aesni-intel - Fix another CTR build failure with gas 2.16.1

The previous AES-NI CTR optimization compiling failure gas 2.16.1 fix
introduces another compiling failure by itself. This patch fixes that.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>