[NUCLEO_F103RB] Use HSI/LSI instead of HSE/LSE
[NUCLEO_F103RB] Use HSI/LSI instead of HSE/LSE

Due to Nucleo board revision C requirements.

kubostech/KubOS,kubostech/KubOS,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos