sha/asm/sha1-586.pl: fix typo.

The typo doesn't affect supported configuration, only unsupported masm.

(Imported from upstream's 3372c4fffa)

Change-Id: Ib6a2f1d9f6fc244a33da1e079188acdf69d5e2f3
Reviewed-on: https://boringssl-review.googlesource.com/3580
Reviewed-by: Adam Langley <agl@google.com>

crypto/sha/asm/sha1-586.pl

@@ -450,7 +450,7 @@ sub sha1msg2	{ sha1op38(0xca,@_); }
 	&sub	("esp",32);
 
 	&movdqu	($ABCD,&QWP(0,$ctx));
-	&movd	($E,&QWP(16,$ctx));
+	&movd	($E,&DWP(16,$ctx));
 	&and	("esp",-32);
 	&movdqa	($BSWAP,&QWP(0x50,$tmp1));	# byte-n-word swap