iio: sysfs-bus-iio-*: update email contact

Change email contact for ABI documention to author's current employer
on the following files:

* sysfs-bus-iio-chemical-vz89x
* sysfs-bus-iio-proximity-as3935

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>