Makefile.inc: Drop spurious `-t` from `cbfstool add-payload`

The `-t` argument was never required for `add-payload` and results in
a warning now because the type was renamed.

TEST=Built with BUILD_TIMELESS=1 and compared binaries with and without
     this patch.

Change-Id: I6ccb70acc6e88a602b90c625040d4f05d8e3630a
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/26323
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions