usb: typec: stusb160x: fix power-opmode property with typec-power-opmode

Device tree property is named typec-power-opmode, not power-opmode.

Fixes: da0cb631 ("usb: typec: add support for STUSB160x Type-C controller family")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201127131735.28280-1-amelie.delaunay@st.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>