linux-imx

HID: wacom: EKR: attach the power_supply on first connection

Or Gnome complains about an empty battery.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>