HID: playstation: Simplify locking with guard() and scoped_guard()

Use guard() and scoped_guard() infrastructure instead of explicitly
acquiring and releasing spinlocks and mutexes to simplify the code and
ensure that all locks are released properly.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Tested-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Author: cristicc