HID: fix generic desktop D-Pad controls

HID: fix generic desktop D-Pad controls

The addition of the "System Do Not Disturb" event code caused the Generic
Desktop D-Pad configuration to be skipped. This commit allows both to be
configured without conflicting with each other.

Fixes: 22d6d060ac77 ("input: Add support for "Do Not Disturb"")
Signed-off-by: Terry Tritton <terry.tritton@linaro.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>