HID: steelseries: Fix battery requests stopping after some time

HID: steelseries: Fix battery requests stopping after some time

In some cases, the headset receiver will answer one of our requests with
garbage, or not at all. This is a problem when we only request battery
information once we've received a battery response, as we might never
get to request battery information again.

If the data from the receiver could not be parsed, and there's no
pending battery requests, schedule a new request.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.com>