print: Fix vendor string memory leak

Freeing this string won't really matter in the incredible case that we
run out of memory, but it keeps Coverity happy.

Change-Id: I962d2f2227850473b70272bc48b3fc0a0fb11342
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 1403822
Reviewed-on: https://review.coreboot.org/c/flashrom/+/34849
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
1 file changed