niacctbase: Give tty access rights to the webserv user.
niacctbase: Give tty access rights to the webserv user.

Serial Ports not detected under Linux RT Targets in MAX/VISA because webserv
user needs to be added to tty group.

Signed-off-by: Ovidiu Vancea <5c8543b42e0c702ca83e838bf20f72a81672f5ef@ni.com>
Acked-by: Ken Sharp <e6c8ad8f54d15df4645e8aaf3f7a209bc3688570@ni.com>
---
Natinst-CAR-ID: 516245
Natinst-ReviewBoard-ID: 91254

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt