control: Use event groups on `signal` triggers

Use the provided event groups when enabling any `signal` triggers
instead of the action groups. Event groups are what's used with setting
up event triggers and may or may not be a different set of groups than
what's used when actions are run depending on event configuration.

Change-Id: I78b6255ada52ed718469a6700b4bc2603b2a85cb
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
3 files changed