driver-api/basics.rst: add device table header

The structs there at device table are used by other documentation
at the Kernel. So, add it to the driver API.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation/driver-api/basics.rst

@@ -7,6 +7,12 @@ Driver Entry and Exit points
 .. kernel-doc:: include/linux/init.h
    :internal:
 
+Driver device table
+-------------------
+
+.. kernel-doc:: include/linux/mod_devicetable.h
+   :internal:
+
 Atomic and pointer manipulation
 -------------------------------