Define interface yaml file for interacting with host

phosphor-dbus-interfaces already has the interface yaml file that
facilitates communication with Host. However, it is only to be used
in the implementations that are common to all platforms.

This commit is enabling commands that are applicable
to OpenPower specific implementations only.

Change-Id: Ifa7c09d4c9aa8ae2205257752af8f8fdf6ca806a
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
1 file changed