[FAB-6732] Fix typos in gossip/privdata
[FAB-6732] Fix typos in gossip/privdata

Fix typos.

Change-Id: I1f38d63321e3225444eb2937cacafaa379cf555b
Signed-off-by: dong pan <3668dc1edfab1b654e5e62cc90a1effbb941c542@wanda.cn>

jimthematrix/fabric,manish-sethi/fabric,binhn/fabric,stemlending/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,lukehuangch/fabric,xixuejia/fabric,hyperledger/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,lukehuangch/fabric,lukehuangch/fabric,lukehuangch/fabric,manish-sethi/fabric-sidedb,stemlending/fabric,ckeyer/fabric,manish-sethi/fabric,muralisrini/fabric,ckeyer/fabric,ckeyer/fabric,binhn/fabric,xixuejia/fabric,muralisrini/fabric,lukehuangch/fabric,ckeyer/fabric,manish-sethi/fabric-sidedb,lukehuangch/fabric,stemlending/fabric,hyperledger/fabric,binhn/fabric,xixuejia/fabric,lukehuangch/fabric,ckeyer/fabric,manish-sethi/fabric-sidedb,jimthematrix/fabric,ckeyer/fabric,ckeyer/fabric,stemlending/fabric,manish-sethi/fabric-sidedb