internal/cpu: make all constants for s390x feature detection typed

Only the first constant in the function and facility
constant declaration blocks were typed constants.
Make all other constants used for function codes and
named facilities also typed.

Change-Id: I1814121de3733094da699c78b7311f99ba4772e1
Reviewed-on: https://go-review.googlesource.com/126776
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/internal/cpu/cpu_s390x.go

@@ -18,16 +18,16 @@ type function uint8
 const (
 	// KM{,A,C,CTR} function codes
 	aes128 function = 18 // AES-128
-	aes192          = 19 // AES-192
-	aes256          = 20 // AES-256
+	aes192 function = 19 // AES-192
+	aes256 function = 20 // AES-256
 
 	// K{I,L}MD function codes
-	sha1   = 1 // SHA-1
-	sha256 = 2 // SHA-256
-	sha512 = 3 // SHA-512
+	sha1   function = 1 // SHA-1
+	sha256 function = 2 // SHA-256
+	sha512 function = 3 // SHA-512
 
 	// KLMD function codes
-	ghash = 65 // GHASH
+	ghash function = 65 // GHASH
 )
 
 // queryResult contains the result of a Query function
@@ -56,20 +56,20 @@ type facility uint8
 const (
 	// mandatory facilities
 	zarch  facility = 1  // z architecture mode is active
-	stflef          = 7  // store-facility-list-extended
-	ldisp           = 18 // long-displacement
-	eimm            = 21 // extended-immediate
+	stflef facility = 7  // store-facility-list-extended
+	ldisp  facility = 18 // long-displacement
+	eimm   facility = 21 // extended-immediate
 
 	// miscellaneous facilities
-	dfp    = 42 // decimal-floating-point
-	etf3eh = 30 // extended-translation 3 enhancement
+	dfp    facility = 42 // decimal-floating-point
+	etf3eh facility = 30 // extended-translation 3 enhancement
 
 	// cryptography facilities
-	msa  = 17  // message-security-assist
-	msa3 = 76  // message-security-assist extension 3
-	msa4 = 77  // message-security-assist extension 4
-	msa5 = 57  // message-security-assist extension 5
-	msa8 = 146 // message-security-assist extension 8
+	msa  facility = 17  // message-security-assist
+	msa3 facility = 76  // message-security-assist extension 3
+	msa4 facility = 77  // message-security-assist extension 4
+	msa5 facility = 57  // message-security-assist extension 5
+	msa8 facility = 146 // message-security-assist extension 8
 
 	// Note: vx and highgprs are excluded because they require
 	// kernel support and so must be fetched from HWCAP.