[FAB-2824]  Incorrect configtx.yaml selected
[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 <75ef9faee755c70589550b513ad881e5a603182c@passkit.com>

kchristidis/fabric,kchristidis/fabric,mffrench/fabric,cophey/fabric,magg/fabric,cophey/fabric,phariel/fabric,mffrench/fabric,manish-sethi/fabric-sidedb,lukehuangch/fabric,magg/fabric,binhn/fabric,cophey/fabric,thakkarparth007/fabric,Ryan--Yang/fabric,blockc/fabric,chrisguoado/fabric,blockc/fabric,thakkarparth007/fabric,tkuhrt/fabric,king3000/fabric,ibmmark/fabric,manish-sethi/fabric,rameshthoomu/fabric,thakkarparth007/fabric,blockc/fabric,cophey/fabric,manish-sethi/fabric-sidedb,ckeyer/fabric,mqshen/fabric,cophey/fabric,chrisguoado/fabric,ckeyer/fabric,ibmmark/fabric,mffrench/fabric,mffrench/fabric,kchristidis/fabric,manish-sethi/fabric-sidedb,rameshthoomu/fabric,king3000/fabric,phariel/fabric,xixuejia/fabric,binhn/fabric,thakkarparth007/fabric,blockc/fabric,stemlending/fabric,tkuhrt/fabric,magg/fabric,xixuejia/fabric,blockc/fabric,Ryan--Yang/fabric,ibmmark/fabric,king3000/fabric,manish-sethi/fabric-sidedb,mffrench/fabric,rameshthoomu/fabric,magg/fabric,kchristidis/fabric,chrisguoado/fabric,kchristidis/fabric,thakkarparth007/fabric,mqshen/fabric,ibmmark/fabric,stemlending/fabric,manish-sethi/fabric-sidedb,rameshthoomu/fabric,Ryan--Yang/fabric,chrisguoado/fabric,king3000/fabric,Ryan--Yang/fabric,thakkarparth007/fabric,ibmmark/fabric,ckeyer/fabric,jimthematrix/fabric,kchristidis/fabric,ckeyer/fabric,ckeyer/fabric,phariel/fabric,ibmmark/fabric,lukehuangch/fabric,Ryan--Yang/fabric,tkuhrt/fabric,manish-sethi/fabric,chrisguoado/fabric,lukehuangch/fabric,magg/fabric,king3000/fabric,blockc/fabric,manish-sethi/fabric-sidedb,king3000/fabric,hyperledger/fabric,mqshen/fabric,mffrench/fabric,tkuhrt/fabric,hyperledger/fabric,tkuhrt/fabric,mqshen/fabric,phariel/fabric,stemlending/fabric,magg/fabric,muralisrini/fabric,jimthematrix/fabric,magg/fabric,Ryan--Yang/fabric,muralisrini/fabric,chrisguoado/fabric,lukehuangch/fabric,cophey/fabric,mqshen/fabric,tkuhrt/fabric,thakkarparth007/fabric,lukehuangch/fabric,tkuhrt/fabric,phariel/fabric,chrisguoado/fabric,Ryan--Yang/fabric,phariel/fabric,rameshthoomu/fabric,stemlending/fabric,ckeyer/fabric,kchristidis/fabric,ckeyer/fabric,lukehuangch/fabric,xixuejia/fabric,cophey/fabric,rameshthoomu/fabric,ibmmark/fabric,mffrench/fabric,lukehuangch/fabric,mqshen/fabric,mqshen/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,phariel/fabric,king3000/fabric,binhn/fabric,blockc/fabric,rameshthoomu/fabric