util/abuild/abuild.1: Fix references to CBROOT parameter

One occurence of this parameter was changed from LBROOT to CBROOT in
f8ee1806ac ("Rename almost all occurences of LinuxBIOS to coreboot.").
Change the others, too.

Change-Id: Ic0da24c32cd6d2f0577de037b5463c800f455786
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/28828
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions