HID: playstation: fix DualShock4 bluetooth CRC endian issue.

The driver was by accident reading the CRC directly from a hardware
structure instead of using get_unaligned_le32.

Fixes: 2d77474a

 ("HID: playstation: add DualShock4 bluetooth support.")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>