iio: mcp9600: White space and fixed width cleanup

iio: mcp9600: White space and fixed width cleanup

Make tabs consistent for register definitions and also fix width
to byte size.

Signed-off-by: Ben Collins <bcollins@watter.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <abdy@kernel.org>
Reviewed-by: David Lechner <dlechner@baylibrc.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20250822-upstream-changes-v8-3-40bb1739e3e2@watter.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>