src/device: Add required space before opening parenthesis '('

Change-Id: I48477c2917ab1be14d3cedf25e8b97dae1c1d309
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16289
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
4 files changed