RHOAM addon installation stuck because of missing smtp secret

Description of problem:

When we install RHOAM (
1.15.2) on OSD using Addon,  it gets stuck due to missing smtp secret 
It is  Known issue https://issues.redhat.com/browse/MGDAPI-3021.

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. <steps>

Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Workaround:

Create empty secret:

oc create secret generic redhat-rhoam-smtp -n redhat-rhoam-operator \ --from-literal=host= \ --from-literal=username= \ --from-literal=password= \ --from-literal=port= \ --from-literal=tls=

Additional info: