usercopy: Don't use "proxy" headers
Update header inclusions to follow IWYU (Include What You Use)
principle.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
authored by Andy Shevchenko and committed by Yury Norov 5671dca2 9f2c2d6b