crypto: vmx - Fix aes_p8_xts_decrypt build failure

BugLink: http://bugs.launchpad.net/bugs/1613295

We use _GLOBAL so there is no need to do the manual alignment,
in fact it causes a build failure.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit 16dee780)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Marcelo Henrique Cerri <marcelo.cerri@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

drivers/crypto/vmx/aesp8-ppc.pl

@@ -2125,8 +2125,6 @@ Lxts_enc_ret:
 .size	.${prefix}_xts_encrypt,.-.${prefix}_xts_encrypt
 
 .globl	.${prefix}_xts_decrypt
-.align	5
-.${prefix}_xts_decrypt:
 	mr		$inp,r3				# reassign
 	li		r3,-1
 	${UCMP}i	$len,16