saved some memory by not filling a temporary array i2c_read_data_dw[256] - this has probably caused Kernel Oops and panicing

Kernel was not adding value from .scc (from .cfg) because it didn't like 'tristate' didn't have a description string

prevent exit if nand_manufacturer_init returns error because it failed to get ECC info and says it does not support it. Have a look later