The value of tHsmdaSchedulerPlcyLvl3WgtInGrp specifies the weight
the HSMDA scheduler policy should apply to this policy level within
the group it belongs to.
The value of tHsmdaSchedulerPlcyLvl3WgtInGrp will only be
used if this policy level has been assigned to a group
by setting tHsmdaSchedulerPlcyLvl3GrpId to a non-zero value.
The value of tHsmdaSchedulerPlcyLvl3WgtInGrp is only allowed to be
non-default when tHsmdaSchedulerPlcyLvl3GrpId is non-default.