power: supply: rk817: Add missing module alias

Similar to the rk817 codec alias that was missing, the rk817 charger
driver is missing a module alias as well. This absence prevents the
driver from autoprobing on OF systems when it is built as a module.

Add the right MODULE_ALIAS to fix this.

Fixes: 11cb8da0189b ("power: supply: Add charger driver for Rockchip RK817")
Cc: [e-mail]
Signed-off-by: Nicolas Frattaroli <[e-mail]>
Reviewed-by: Chris Morgan <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Sebastian Reichel <[e-mail]>

drivers/power/supply/rk817_charger.c

···
 MODULE_AUTHOR("Maya Matuszczyk <[e-mail]>");
 MODULE_AUTHOR("Chris Morgan <[e-mail]>");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:rk817-charger");