Use die() or bbfatal_log() where the log should definitely be printed
Change calls to bbfatal() to either die() or bbfatal_log() where we know
we want the full log to be printed by the UI (calling bberror or bbfatal
would otherwise suppress it since the change to connect these functions
through to the UI.) bbfatal() is still fine to use where there is enough
context information in the message such that the log isn't needed.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
