HID: samsung: Add Samsung wireless gamepad support

Add support for samsung wireless gamepad with input mapping events.

Device a000 (Samsung wireless gamepad)

Signed-off-by: Sandeep C S <sandeep.cs@samsung.com>
Signed-off-by: Junwan Cho <junwan.cho@samsung.com>
Signed-off-by: Jitender Sajwan <jitender.s21@samsung.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>