sha512-sparcv9.pl: fix binutils compilation error.

Submitted by: David Miller

crypto/sha/asm/sha512-sparcv9.pl

diff --git a/crypto/sha/asm/sha512-sparcv9.pl b/crypto/sha/asm/sha512-sparcv9.pl
index 71d6726..e728d6e 100644
--- a/crypto/sha/asm/sha512-sparcv9.pl
+++ b/crypto/sha/asm/sha512-sparcv9.pl
@@ -170,7 +170,7 @@
 	ld	[$inp+16],%l4
 	ld	[$inp+20],%l5
 	ld	[$inp+24],%l6
-	cmp	0,$tmp31
+	cmp	$tmp31,0
 	ld	[$inp+28],%l7
 ___
 $code.=<<___ if ($i<15);