payloads/libpayload: Add spaces around '=='

Change-Id: Ie1da925aceb01c2d21b472bf171000803004578f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/25856
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
7 files changed