HID: MAINTAINERS: Add HID SENSOR HUB drivers

Added additional entry for hid sensor hub drivers, which includes core
hid sensor hub MFD driver and IIO drivers for individual sensors.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>