phy-stm32-usbphyc bindings uses a connector node with vbus-supply property. [backport from linux 43e55d778a6b] Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>