[flashrom] error reporting

[Adam Vegh]

Erase/write done.
Verifying flash... FAILED at 0x0055bc8b! Expected=0x71, Found=0x48, failed
byte count from 0x00000000-0x007fffff: 0x217dbe
Your flash chip is in an unknown state.
Please report this on IRC at chat.freenode.net (channel #flashrom) or
mail [e-mail], thanks!