MIPI-CSI: Enable power to the camera module.

Enable power to the camera module by default to simplify board testing.

script_support/components/MIPI_CSI/DEFAULT/ADD_MIPI_CSI_INTERFACE.tcl

+# Enable power to camera module:
+sd_create_scalar_port -sd_name ${sd_name} -port_name {CSI1_PWND} -port_direction {OUT}
+sd_connect_pins_to_constant -sd_name ${sd_name} -pin_names {CSI1_PWND} -value {VCC}

script_support/components/MIPI_CSI/DEFAULT/constraints/MIPI_CSI_INTERFACE.pdc

+set_io -port_name CSI1_PWND  \
+    -pin_name Y13            \
+    -fixed true              \
+    -DIRECTION OUTPUT