fb/ramnva3: Ressurect timing calculation code

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
fb/ramnva3: Reclocking script for DDR3

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
fb/ramnva3: Reclocking script for GDDR3

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
clock/nva3: Allow user reclocking

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
fb/ramnva3: Initialise PART_PM_SEL
pwr/fuc: WIP mimic blob by adding read before waiting status

This could be a workaround for stale values... see if it helps stability
clock/nva3: Stop CTXPROG
DROP: regenerate microcode
fifo/nv84: WIP:random fifo initialisation