mb/google/volteer: fix some white space nits

Convert spaces to tabs in volteer variant makefiles, and remove empty
comment lines from file headers.

BUG=none
TEST="emerge-volteer coreboot chromeos-bootimage", flash and verify
volteer boots to kernel.

Change-Id: I6c818c3adcc55ce89707efff6dd9a6bce512daa5
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41587
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions