The value of tmnxMobServApnChrgCcIgnoreHome specifies to ignore
HSS or MME supplied charging characteristics for home scenarios.
Corresponding default profile is selected when the received charging
characteristics is ignored.
When the value of tmnxMobServApnChrgCcIgnoreHome is 'inherit', the value
is inherited from the value of tmnxMobServChrgCcIgnoreHome which
specifies to ignore HSS or MME supplied charging characteristics for
home scenarios at the gateway level.