eth: fbnic: add missing header guards

While adding the SPDX headers I noticed we're also missing
a header guard.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20241115015344.757567-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-11-14 17:53:41 -08:00
commit 2a0d6c1705