Details:
- Adding threshold function pointers to cntx gives flexibility to choose
different threshold functions for different configurations.
- In case of fat binary where configuration is decided at run-time,
adding threshold functions under a macro enables these functions for
all the configs under a family. This can be avoided by adding function
pointers to cntx which can be queried from cntx during run-time
based on the config chosen.
Change-Id: Iaf7e69e45ae5bb60e4d0f75c7542a91e1609773f
6bad157754