[BUG] Cannot add TFA device for freeipa user

[bhrg3se]

Describe the bug:

It shows "invalid username or password" error when you enter email and password of freeIPA user in "My Devices > Enroll Device".

Log file / Code snippet / Screenshots:

time="2021-03-22T10:43:47+05:45" level=error msg="LDAP Result Code 49 \"Invalid Credentials\": " func=github.com/seknox/trasa/server/api/auth.LoginHandler file="auth/hPasswordLogin.go:79"

Scope of issue: dashboard, server