promotion help tip says "one or more", but UI allows only one env to select
Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1091941
Description of problem:
Promotion Help tip says "one or more", but UI allows only selection of a single env to be promoted. [ That is when we have multiple promotion paths]
What the promotion "help tip" says on the UI and the actual functionality differ.
"Choose one or more lifecycle environments from the existing promotion paths available in '<Org>'."
Version-Release number of selected component (if applicable):
Have 2 promotion paths
Library --> Dev --> Test --> Prod
Libary --> Dev2 --> Test2 --> Prod2
Steps to Reproduce:
1. Have 2 promotion paths
2. create a CV
3. Try promoting/selecting multiple env while promotion as per the help tip.
Text saying "one or more" contradicts actual functionality
Looks like we can select only "one Env" for promotion,
fixes #6277 - fixes issue with promotion hint not matching functionality, BZ 1091941