x86[_64] assembly pack: add Silvermont performance data.
(Imported from upstream's 9dd6240201fdd9a9a0ce2aa66df04c174d08cf99)
Change-Id: Ie0f6f876e06ac28c717ec949565f6b0126166b30
diff --git a/crypto/sha/asm/sha256-586.pl b/crypto/sha/asm/sha256-586.pl
index 0c2a778..6462e45 100644
--- a/crypto/sha/asm/sha256-586.pl
+++ b/crypto/sha/asm/sha256-586.pl
@@ -53,6 +53,7 @@
# Bulldozer 36 - 27/22 17.0 13.6
# VIA Nano 36 - 25/22 16.8 16.5
# Atom 50 - 30/25 21.9 18.9
+# Silvermont 40 - 34/31 22.9 20.6
#
# (*) numbers after slash are for unrolled loop, where applicable;
# (**) x86_64 assembly performance is presented for reference
