Replace the CLM blob file from Github, which supports several countries
with a custom US-only CLM blob file. This way, default images will only
have support for US regulatory domain, therefore complying with FCC
requirements.
The Worldwide CLM blob file will be provided by Digi International on
request.
https://onedigi.atlassian.net/browse/DEL-8453
Signed-off-by: Gonzalo Ruiz <Gonzalo.Ruiz@digi.com>