boards: correct dmci_camera_connector typo in stm32h7

The camera connector in stm32h7b3i_dk (and st_b_cams_omv_mb1683 shield)
are refering to the connector name as dmci_... instead of dcmi_...

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
2 files changed