HID: pidff: Move all hid-pidff definitions to a dedicated header

HID: pidff: Move all hid-pidff definitions to a dedicated header

[ Upstream commit 0d24d4b1da96df9fc5ff36966f40f980ef864d46 ]

Do not clutter hid includes with stuff not needed outside of
the kernel.

Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>
Reviewed-by: Michał Kopeć <michal@nozomi.space>
Reviewed-by: Paul Dino Jones <paul@spacefreak18.xyz>
Tested-by: Paul Dino Jones <paul@spacefreak18.xyz>
Tested-by: Cristóferson Bueno <cbueno81@gmail.com>
Tested-by: Pablo Cisneros <patchkez@protonmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>