[coreboot] #117: flashrom: Check if erase succeeds and exit with error on failure

[coreboot]

#117: flashrom: Check if erase succeeds and exit with error on failure
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   Reporter:  stuge                           |          Owner:  stuge        
       Type:  defect                          |         Status:  new          
   Priority:  blocker                         |      Milestone:  flashrom v1.0
  Component:  flashrom                        |        Version:               
   Keywords:  erase error                     |   Dependencies:               
Patchstatus:  patch is ready to be committed  |  
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