SIG-591: Modified  N-5.2.50 to handle 1SS case SIG-549: Added N-5.2.50_GN entry in Sigma-11n file
SIG-591: Modified  N-5.2.50 to handle 1SS case
SIG-549: Added N-5.2.50_GN entry in Sigma-11n file

Signed-off-by: Naveen Kumar <d9ac015f3c6636b8c858c404f85d246406094785@wi-fi.org>

Wi-FiTestSuite/Wi-FiTestSuite-UCC,KunYi/Wi-FiTestSuite-UCC,jackalchen/Wi-FiTestSuite-UCC,claudelee/Wi-FiTestSuite-UCC