Release 1.8.1, fix P25128L QE bit set command

Release 1.8.0, add SPI qio mode support

Release 1.7.5, fix loop reboot problem in certain case

Release 1.7.4, fix reboot bug with bit_mic

Release 1.7.3, fix flash busy wait bug

bump version to v1.7.2

fix requirements bug

Release 1.7.0, support unaligned write, fix erase bug

update kflash.py

update kflash.py