[FAB-8516] cryptogen NodeOUs should match fabric-ca

cryptogen generates the following NodeOUs (when
enabled):
OU=FabricClient
OU=FabricPeer

fabric-ca generates:
OU=client
OU=peer

This causes issues if you try to bootstrap a
network with cryptogen and then enroll clients
with fabric-ca.

It's trivial to make cryptogen use the same
OUs as fabric-ca.

Change-Id: I817f5e034822cfb1b6ce6bf5635a5e19fe6b74ba
Signed-off-by: Gari Singh <gari.r.singh@gmail.com>

common/tools/cryptogen/msp/generator.go

@@ -28,8 +28,8 @@ const (
 )
 
 const (
-	CLIENTOU = "FabricClient"
-	PEEROU   = "FabricPeer"
+	CLIENTOU = "client"
+	PEEROU   = "peer"
 )
 
 var nodeOUMap = map[int]string{