mfd: cros_ec: Register charge control subdevice

Add ChromeOS EC-based charge control as EC subdevice.

Signed-off-by: Thomas Weißschuh <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/cros_ec_dev.c

···
 };
 
 static const struct mfd_cell cros_usbpd_charger_cells[] = {
+	{ .name = "cros-charge-control", },
 	{ .name = "cros-usbpd-charger", },
 	{ .name = "cros-usbpd-logger", },
 };