net: bna: remove trailing semicolon in macro definition

The macro use will already have a semicolon.
Clean up escaped newlines.

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20201202163622.3733506-1-trix@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>