mei: Move uuid_le_cmp() to its only user

There is only a single user of uuid_le_cmp() API, let's make it private
to that user.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230202145412.87569-1-andriy.shevchenko@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>