Correct pin names for serial rx/tx
Merge pull request #726 from mbrudevoldlpd/master

Targets: MTS MDOT - Correct pin names for serial rx/tx
Revert "[NUCLEO_F103RB] update SystemCoreClock after changing clock settings"
Merge pull request #728 from xiongyihui/revert-724-master

Targets: Revert "[NUCLEO_F103RB] update SystemCoreClock after changing clock sett...