util/autoport/.gitignore: Ignore logs folder

The README suggests using `logs` as the folder name where autoport puts
the generated logs. Thus, add this folder to .gitignore for the sake of
convenience. Yes, people can use other folder names, but `logs` is most
commonly used.

Change-Id: I37906b43ba3e132de616184e4a5082ce00f4b230
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82398
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>

util/autoport/.gitignore

@@ -1 +1,2 @@
 autoport
+logs/