meta-galileo: Point to the github linux-yocto-micro-3.14 repo

And comment out the local (dev) SRC_URI.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
meta-galileo: Update clone-galileo and README

To point to the github repos, and some updates for daisy.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>