[HL78] Extra Line Feed added with AT Proxy
[HL78] Extra Line Feed added with AT Proxy

These changes remove the extra line feed from
the remote AT command path, but continue to
provide it for the local AT command path,
as it is still required.

Resolves: LE-15834
Change-Id: I283e873215567d94b493d566d12614d0d7214bd6

legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af