MAINTAINERS: Add section for overall sensors

Sensor devices depend on some bus, not a particular board.
While merged for a particular board, sensor devices don't
depend on it. They depend on a bus technology, and can be
used by any board exposing such bus.

In order to help merging sensor patches, when they fall out
of a particular board tree, add a section covering overall
sensors, to help out with patch review and merge queue
handling.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

MAINTAINERS

@@ -3418,6 +3418,12 @@ M: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
 S: Maintained
 F: contrib/elf2dmp/
 
+Overall sensors
+M: Philippe Mathieu-Daudé <philmd@linaro.org>
+S: Odd Fixes
+F: hw/sensor
+F: include/hw/sensor
+
 I2C and SMBus
 M: Corey Minyard <cminyard@mvista.com>
 S: Maintained