FSR_ENABLE_ONENAND_LFT -> FSR_ENABLE_4K_ONENAND_LFT

The Samsung Galaxy MSM7k series are all 4K devices.
Reorganize makefile by flash types, enable 4K OND

NOTE: I've enabled the LLD/OND_MSM7k 4K version of the files, but
the galaxy5 source uses LLD/OND. Furthermore, the galaxy5 versions
of LLD/OND/ contains the FSR_MSM7200 specific code. We need to sort
this out.