'''''CFI driver NOR flash array support.'''''

'''Used hints:'''

''hint.cfi.0.width=0''

preset bus access width 
||0||auto probe||
||1||8bit||
||2||16bit||
||4||32bit||
(can do 64bit, but devices with this width unknown)

''hint.cfi.0.shift=0''

preset address multiplier 
||0 || auto probe||
||1 || dont shift||
||2 || <<1||
||4 || <<2||




'''TODO:'''
fix detection algorithm, currently he detect flash with width=2 and addr_multiplier shift=2 as w=1,s=2