crypto: aes-ce - Make aes_simd_algs static

The variable aes_simd_algs should be static.  In fact if it isn't
it causes build errors when multiple copies of aes-ce-glue.c are
built into the kernel.

Fixes: da40e7a4

 ("crypto: aes-ce - Convert to skcipher")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>