[FAB-2824] Incorrect configtx.yaml selected

When using configtxgen locally, the configtx.yaml from the source
folder will always be selected even if Orderer or Peer config
paths are specified.

For loop in localconfig/congif.go is not exited when a valid config
path is found. This is inconsistent with how it is handled in
provisional/provisional.go.

Change-Id: I3d00b713fedc059e4a10de0e0197d4db3d3826c2
Signed-off-by: Nick Murray <nick@passkit.com>

common/configtx/tool/localconfig/config.go

@@ -196,6 +196,7 @@ func Load(profile string) *Profile {
 		}
 		cfgPath = path
 		logger.Infof("Found %s there", configFileName)
+		break
 	}
 
 	if cfgPath == "" {