[dev.boringcrypto] crypto/internal/cipherhw: fix AESGCMSupport for Bo…

…ringCrypto

The override was not commented and was in the wrong file.

Change-Id: I739db561acff6d91b0f3559c8bb45437f11c0b04
Reviewed-on: https://go-review.googlesource.com/59250
Reviewed-by: Adam Langley <agl@golang.org>

src/crypto/internal/cipherhw/cipherhw_amd64.go

@@ -6,11 +6,19 @@
 
 package cipherhw
 
+import "crypto/internal/boring"
+
 // defined in asm_amd64.s
 func hasAESNI() bool
 
 // AESGCMSupport returns true if the Go standard library supports AES-GCM in
 // hardware.
 func AESGCMSupport() bool {
+	// If BoringCrypto is enabled, we report having
+	// AES-GCM support, so that crypto/tls will
+	// prioritize AES-GCM usage.
+	if boring.Enabled {
+		return true
+	}
 	return hasAESNI()
 }

src/crypto/internal/cipherhw/generic.go

@@ -6,8 +6,6 @@
 
 package cipherhw
 
-import "crypto/internal/boring"
-
 func AESGCMSupport() bool {
-	return boring.Enabled
+	return false
 }