This patch enables USBPHYC (USB PHY Controller on stm32mp15 DKx boards.
This enables the two usbphyc usb2 ports, which require 3 supplies:
3v3, 1v1 and 1v8.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>