.gitignore: ignore *.swo and option *.roms

Change-Id: I7403f548bae918ca813a9295bfb095a7c4c51e21
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/15220
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed