[platform][zynq][gem] flatten all the gem tracking registers into a single structure
[platform][zynq][gem] flatten all the gem tracking registers into a single structure

This actually manifests itself as a slight win performance wise, due
to better codegen with all the variables being near each other.

nvll/lk,srodrig1/lk,skabet/lk,ErikCorryGoogle/lk,sndnvaps/lk,ErikCorryGoogle/lk,hollanderic/lkstuff,travisg/lk,nvll/lk,littlekernel/lk,sndnvaps/lk,littlekernel/lk,srodrig1/lk,travisg/lk,sndnvaps/lk,nvll/lk,nvll/lk,sndnvaps/lk,travisg/lk,GCrean/lk,GCrean/lk,minglun-tsai/lk,ErikCorryGoogle/lk,travisg/lk,nvll/lk,littlekernel/lk,hollanderic/lkstuff,littlekernel/lk,skabet/lk,skabet/lk,skabet/lk,GCrean/lk,hollanderic/lkstuff,srodrig1/lk,ErikCorryGoogle/lk,minglun-tsai/lk,GCrean/lk,skabet/lk,GCrean/lk,sndnvaps/lk,srodrig1/lk,hollanderic/lkstuff,srodrig1/lk,minglun-tsai/lk,minglun-tsai/lk