HID: remove x bit from sensor doc

Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/hid/hid-sensor.txt b/Documentation/hid/hid-sensor.txt
old mode 100755
new mode 100644