* sparc/aes.asm (_aes_crypt): Unrolled final loop, preparing for

optimizations.
(_aes_crypt): Eliminated i from forst copy of the loop. Some
cleanup.
(_aes_crypt): And from second copy.
(_aes_crypt): And from third.
(_aes_crypt): And fourth.

Rev: src/nettle/sparc/aes.asm:1.90