HID: cp2112: Switch to for_each_set_bit() to simplify the code

It's cleaner to use for_each_set_bit() than open coding it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230703185222.50554-5-andriy.shevchenko@linux.intel.com


Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>