This change adds the user identification to the key name used to manage
the credentials stored in the keyring, allowing multiple user
credentials in the same terminal session.
TEST PLAN:
PASS: Build package and ISO.
PASS: Without source and passing the user credentials on the command
line, check if the user has the expected permissions.
PASS: Source and verify that the user permissions are in place.
PASS: Switch users and verify that the correct credentials are being
used.
Closes-Bug: 2120721
Change-Id: Ibe00b6c67d71f6bb9ce2e64c6058466cafc4b5f3
Signed-off-by: Reynaldo P Gomes <reynaldo.patronegomes@windriver.com>