selftests/hid: hidraw: forge wrong ioctls and tests them

We also need coverage for when the malicious user is not using the
proper ioctls definitions and tries to work around the driver.

Most of the scaffholding has been generated by claude-4-sonnet and then
carefully reviewed.

Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>