bareudp: constify device_type declaration

device_type may be declared as const.

Signed-off-by: Jonas Bonn <jonas@norrbonn.se>
Link: https://lore.kernel.org/r/20201202122324.564918-1-jonas@norrbonn.se
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 file changed