This adds a driver for the ST M95xxx series SPI EEPROMs.
The driver has been tested with the M95M01 EEPROM, but should
work with other chips from that family.
SPI-EEPROMs from other vendors from the families AT25xxx, 25AAxxx,
25LCxxx, CAT25xxx & BR25Sxxx should also in the same way.
