When ramdisk-image-create is called with the hwdiscovery element,
it failed to install hwinfo package.
The root reason is 10-hwinfo is not executable, the fix is to
set the file permission of 10-hwinfo to be executable.
Change-Id: I3a57147103f607b3975eb6ad23a44475f26c2f1e
Flavour is overloaded in openstack due to it being used by nova. Element
seems to have the same feeling of combinability without using a term already
in active use in the openstack community.
Change-Id: Ia4c028d4062a8f69c66665821c94dd4bcdf06031