HID: Add Force Feedback support for EMS Trio Linker Plus II

The device has connections for GameCube, PlayStation 2 and Dreamcast
controllers, however Force Feedback is only supported for PS2 and GC
controllers.

When using a PS2 controller it may be necessary to press the "Analog" button to
enable support for both motors (this behavior is identical to the Windows
driver, I have found no way to avoid that).

Signed-off-by: Ignaz Forster <ignaz.forster@gmx.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --cc drivers/hid/Kconfig
Simple merge

diff --cc drivers/hid/Makefile
Simple merge

diff --cc drivers/hid/hid-core.c
Simple merge

diff --cc drivers/hid/hid-emsff.c
Simple merge

diff --cc drivers/hid/hid-ids.h
Simple merge