Access the different flash banks' registers using a bank specific register
base and a register specific offset. This is equivalent but feels more
natural.
Some accesses were discovered that maybe should not be hard coded to bank0
registers. Add a note about that.
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Use consistent names for the stm32 family flash drivers, eg.
stm32x -> stm32f1x
stm32f2xxx -> stm32f2x
this makes it easier to add support for newer stm32 families.
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>