The value of vRtrPimNgGenEcmpHashingEnabled specifies whether or not
the multicast balancing of traffic over ECMP links is hash based.
If vRtrPimNgGenEcmpHashingEnabled is 'true' then the multicast
balancing of traffic over ECMP links is done based on
Upstream Multicast Hop(UMH) algorithm.
The value of vRtrPimNgGenEcmpHashingEnabled is mutually exclusive
with the value of vRtrPimNgGenEcmpBalance in the same context.
An 'inconsistentValue' error is returned when an attempt is made
to set the value of vRtrPimNgGenEcmpHashingEnabled to 'true' when the
value of vRtrPimNgGenEcmpBalance is set to 'true'.