We don't need to parse all recipes just to show the list of layers,
since that comes straight from the configuration, so save a bit of time
by not doing so. (A minor regression that came in with the the
bitbake-layers refactoring).
(Bitbake rev: a609ad7d560260a8d50dfa197cd960f496c5da73)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>