util/abuild: Add argument -R to specify root directory

cbroot was previously specified by just adding it to the end of the
command line with no explicit identifier.  This change allows it to
go anywhere in the command line and adds the -R or --root identifier.

This makes the command line more consistent.  Most of the time, this
argument isn't even needed, as the automatic detection finds cbroot.

Change-Id: I1d6fd8f51765d0d8b29be8af1e8105e06dd44cc8
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17740
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions