Documentation: hid: fix path to input bus definitions

The UAPI header split failed to update the documentation here; fix things
accordingly.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/hid/hidraw.txt b/Documentation/hid/hidraw.txt
index 029e6cb..c8436e3 100644
--- a/Documentation/hid/hidraw.txt
+++ b/Documentation/hid/hidraw.txt
@@ -81,7 +81,7 @@
 	BUS_HIL
 	BUS_BLUETOOTH
 	BUS_VIRTUAL
-which are defined in linux/input.h.
+which are defined in uapi/linux/input.h.
 
 HIDIOCGRAWNAME(len): Get Raw Name
 This ioctl returns a string containing the vendor and product strings of