Add methods to driving the LEDs

This enables creating custom groups and participating LEDs so that
it can later be generated from MRW. For each of the group, a dbus object
is created which will announce LED actions. Corresponding groups are
asserted / de-asserted based on user input.

Change-Id: I7e64bea13767b8d083dd946f4cf3aeb37e62ff17
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
6 files changed