sha/asm/sha*-armv8.pl: add Denver and X-Gene esults.

Reviewed-by: NRichard Levitte <levitte@openssl.org>

crypto/sha/asm/sha1-armv8.pl

@@ -16,8 +16,12 @@
 # Apple A7	2.31			4.13 (+14%)
 # Cortex-A53	2.24			8.03 (+97%)
 # Cortex-A57	2.35			7.88 (+74%)
+# Denver	2.13			3.97 (+0%)(**)
+# X-Gene				8.80 (+200%)
 #
 # (*)	Software results are presented mostly for reference purposes.
+# (**)	Keep in mind that Denver relies on binary translation, which
+#	optimizes compiler output at run-time.
 
 $flavour = shift;
 $output  = shift;

crypto/sha/asm/sha512-armv8.pl

@@ -16,6 +16,8 @@
 # Apple A7	1.97		10.5 (+33%)	6.73 (-1%(**))
 # Cortex-A53	2.38		15.5 (+115%)	10.0 (+150%(***))
 # Cortex-A57	2.31		11.6 (+86%)	7.51 (+260%(***))
+# Denver	2.01		10.5 (+26%)	6.70 (+8%)
+# X-Gene			20.0 (+100%)	12.8 (+300%(***))
 # 
 # (*)	Software SHA256 results are of lesser relevance, presented
 #	mostly for informational purposes.