CFGx reconfiguration in
                      XVphy_Gthe4ClkChReconfig API
                    Corrected the default return value of DRP encoding
                      APIs to prevent overwritting the reserved bits
1.5   gm   27/04/17 Updated the RXPI_CFG0 according to new GTWiz rules
                    Corrected RXCDR_CFG values for DP
                    Added XVphy_CfgCpllCalPeriodandTol API
1.6   gm   12/06/17 Changed XVphy_DrpRead with XVphy_DrpRd
                    Changed XVphy_DrpWrite with XVphy_