[FAB-7445] Fix Comment Error

In file fabric/common/channelconfig/applicationorg.go  Line 66,
there is a comment describe the function of method
`func (aog *ApplicationOrgConfig) AnchorPeers() []*pb.AnchorPeer`

the comment says:

`// AnchorPeers returns the list of valid orderer addresses to connect to to invoke Broadcast/Deliver`

But the real function of this method is to return the list of Anchor peers of this Organization,
so the comment is WRONG.I modify the comment as below:

`// AnchorPeers returns the list of anchor peers of this Organization`

Change-Id: I2a63a3847153ab0667db65b4012413bc020fc97e
Signed-off-by: c_lq <Caojing@hyperchain.cn>

common/channelconfig/applicationorg.go

@@ -63,7 +63,7 @@ func NewApplicationOrgConfig(id string, orgGroup *cb.ConfigGroup, mspConfig *MSP
 	return aoc, nil
 }
 
-// AnchorPeers returns the list of valid orderer addresses to connect to to invoke Broadcast/Deliver
+// AnchorPeers returns the list of anchor peers of this Organization
 func (aog *ApplicationOrgConfig) AnchorPeers() []*pb.AnchorPeer {
 	return aog.protos.AnchorPeers.AnchorPeers
 }