This enables viewing more than ~20 files in the file list on the left.
Arrows are added to indicate that more items are available off-screen.
This mimics what was done in pci_module.
Change-Id: Idd1363e1abe98ba51c795879db061cc54808da8e
Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Reviewed-on: https://review.coreboot.org/14546
Tested-by: build bot (Jenkins)
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
d770bad317