hwdb: change definition of PROXIMITY_NEAR_LEVEL for sensors

The [kernel documentation][0] for the in_proximity_nearlevel sysfs
attribute on iio proximity devices states:

    If the value read from the sensor is above or equal to the value in
    this file an object should typically be considered near.

Meaning a 'greater than or equal to' comparison.

Make the documentation comment in 60-sensors.hwdb suggest a
greater-or-equal rather than a strict greater-than comparison.

[0]: https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-bus-iio-proximity

Fixes #25793

hwdb.d/60-sensor.hwdb

@@ -45,8 +45,8 @@
 # subsystem[1]. The default, when unset, is equivalent to:
 #   ACCEL_MOUNT_MATRIX=1, 0, 0; 0, 1, 0; 0, 0, 1
 # eg. the identity matrix,
-# and <value> is an integer value above which an object is considered
-# close by a proximity sensor:
+# and <value> is an integer value above or equal to which an object is
+# considered close by a proximity sensor:
 #   PROXIMITY_NEAR_LEVEL=100
 #
 # [1]: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfc57732ad38f93ae6232a3b4e64fd077383a0f1