TODO: finish 2D acceleration
sm712.h: remove unused NR_PALETTE
merge sm712.h to regs.h
rename sm712 to sm712fb.
move private struct to sm712fb_drv.c
rename io.h to sm712fb_io.h
merge regs.h to sm712fb_drv.h
rename modedb.h to sm712_modedb.h
sm712fb_io.h: add the copyright header
fix missing macros
move accel code to sm712fb_accel.c